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Martial arts and combat sports (MA&CS) are lifelong nontraditional activities seldom available for youth in school settings. Research has found that MA&CS can promote a variety of benefits to youth with novel experiences that promote nonviolent, psychological, affective, cognitive, and physical outcomes. Objective: The objective of this scoping review was to identify and categorize the peer-reviewed research with a pedagogical focus on MA&CS for youth across 10 years. Methods: The key terms used related to MA&CS and young people. We followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses for scoping review guidelines and included peer-reviewed empirical articles from six databases in English and Portuguese from 2013 to 2022. Results: The Results section was divided into a quantitative description of the literature analyzed and a discussion of the psychological, social, affective, physical, cognitive, and academic benefits of MA&CS interventions. Conclusion: MA&CS interventions can provide multiple benefits for youth in physical education and out-of-school settings. [ABSTRACT FROM AUTHOR]

Purpose: To characterize the time structure of K1 kickboxing matches of Glory World Series (Glory) and to determine potential differences between winners and losers. Methods: Seventeen matches of Glory 2019 (17 first rounds, 13 second rounds, and 8 third rounds) were video-analyzed to quantify (1) the time expended in high- and low-intensity activity and pauses, (2) the number and pattern of attacks, and (3) the number of effective attacks. Fighters were professional male athletes (age 27.9 [2.7] y) of the middle-weight category (85 kg). The number and the pattern of attacks and the number of effective attacks were compared between winners and losers. Results: The mean times expended in high- and low-intensity activity and pauses were 234.6 (133.9) seconds, 97.4 (60.1) seconds, and 36.0 (19.9) seconds, respectively, resulting in an effort-to-pause ratio of ∼1.8:1. Compared with losers, winners presented (1) a greater number of attacks in the second round (P =.004) and entire match (P =.009), (2) a greater number of attacks containing 3 attacks in sequence in the second round (P =.001) and attacks containing >3 attacks in the third round (P =.049), and (3) a greater number of effective attacks in the second round (P =.011) and entire match (P =.008). Conclusions: The findings of the present study indicate that K1 kickboxing in Glory matches presents a ∼1.8:1 effort-to-pause ratio and that winners perform more attacks, effective attacks, and attacks in sequence. These data provide useful insights to improve the training specificity of kickboxing athletes. [ABSTRACT FROM AUTHOR]

Mixed martial arts' popularity has increased in recent years, alongside descriptive research and evidence-based performance recommendations. Guidelines for (both chronic and acute) weight making exist; however, how these translate in real-life scenarios and detailed investigations on practices in larger groups deserve attention. The present study examined the body mass (BM) and composition of 33 professional mixed martial arts athletes preparing for 80 fights. Athletes were supported by on-site dietitians, who encouraged evidence-based practices. Fasted BM was measured throughout the last ∼10 days before all bouts (acute weight management phase). A subset of athletes had body composition assessed before and after the chronic weight loss phase for 40 fights. Most athletes engaged in chronic BM loss, and all engaged in acute weight loss. Many lost fat-free mass (FFM) during the chronic phase, with rates of BM loss <0.5% best preserving FFM. Regardless of losses, the present athletes possessed greater FFM than other combat sport athletes and engaged in greater acute weight loss. Dehydration in the 24–48 hr before the weigh-in was not reflective of weight regain after the weigh-in, rather BM 7–10 days before the weigh-in was most reflective. These findings suggest that many mixed martial arts athletes could increase FFM at the time of competition by maintaining leaner physiques outside of competition and/or allowing increased time to reduce BM chronically. Acutely, athletes can utilize evidence-based protocols, eliminating carbohydrates, fiber, sodium, and finally fluid in a staged approach, before the weigh-in, reducing the amount of sweating required, thus theoretically better protecting health and preserving performance. [ABSTRACT FROM AUTHOR]

Match-related performance analysis in judo Para athletes with visual impairments is important to coaches and staff to identify technical–tactical profiles of their athletes and opponents but also to identify whether there are similar characteristics in each visual class. Thus, this study explores the match-related performance in judo Para athletes and verifies the relationship between performance using the old and new classification systems. The match-derived variables were analyzed using different statistical methods considering a total of 182 matches from the Tokyo 2020 Paralympic Games. The results indicated that performance was affected by sex and degree of impairment. The new classification system seems suitable for grouping Para judo athletes, as it differentiates performance between the two proposed classes (J1 and J2), since athletes from each group compete separately. Furthermore, different variability index measures were correlated with competitive performance, demonstrating a specific performance profile for each sport class in judo. [ABSTRACT FROM AUTHOR]

Talent transfer has enabled elite athletes to be successful in another sport, with great potential in para-sport. Previous research suggests that similarities between donor and recipient sports may facilitate talent transfer; however, this remains unclear in para-sport. This study investigated patterns between donor and recipient sports' characteristics, identifying the impact on talent transfer in para-sport. An Australian case study utilizing secondary data of 38 Australian Paralympians who competed at the Paralympic Games from 2000 through 2020 was analyzed. Results demonstrated that similarities between sports were not significantly associated with successful talent transfers between Paralympic sports. Understanding patterns associated with successful Paralympic talent transfers offers a foundation of knowledge for designing and developing future talent-transfer pathways and research. Based on this study, it is recommended that sport administrators and practitioners explore greater opportunity for talent transfer in para-sport, rather than limiting talent-transfer opportunities based on athletes' donor sports. [ABSTRACT FROM AUTHOR]

Purpose: Successful participation in taekwondo (TKD) requires athletes to possess quick decision-making abilities and demonstrate technical proficiency during competition. Dehydration, occurring during both training and competition, is widely recognized to have various negative effects. Methods: This study investigated the impact of different levels of dehydration on cognitive function, as measured by the Vienna Test System, and the specific performance of kicking techniques among TKD athletes. Using a randomized crossover design, 12 participants were involved in the study. Before and after 1 hour of training at 80% of maximal heart rate, participants were weighed and provided urine samples. All participants were randomly assigned to 3 different hydration conditions: the euhydrated (EUH) group had unrestricted access to fluid consumption, while the hypohydrated (HYP) and severely HYP (S-HYP) groups experienced reductions of 2.0% and 4.0% of their initial body weight, respectively. Results: The EUH group exhibited better reaction speed in reaction-time test-form S1 than the HYP and S-HYP groups. Notably, the EUH group demonstrated a significantly higher success rate in the front-side kick (EUH 98%, HYP 90%, S-HYP 88%; P <.05). However, the success rates of back roundhouse kick and free head kick were similar among the 3 statuses. Furthermore, postexercise heart rates were found to be significantly higher in the HYP and S-HYP groups compared with the EUH group. Conclusions: This study provides insight into the negative effects of dehydration on cognitive function and TKD-specific performance. It is recommended that TKD athletes maintain optimal hydration levels during training and competition to ensure optimal performance. [ABSTRACT FROM AUTHOR]

In response to recent calls for promoting the contextual intelligence of sport psychology practitioners, the aim of the current study was to obtain the first-person competitive experiences of kendo fighters (i.e., kenshi). Existential phenomenological interviews were conducted with eight competitive Japanese-American kenshi residing in the United States. The findings of thematic analysis indicated that the participants possessed a strong commitment to earning ippon (i.e., a valid point), which was achieved by a subjective synchronization of mind, sword, and body in the execution of a strike against an opponent. They considered this to be a transformative experience, which elevated them perceptually out of the sporting context to a momentary sense of "cutting" the opponent with a real sword. The current findings also offer sport psychology consultants possible context-specific insights (e.g., importance of seme) and strategies (e.g., management of attentional focus, self-regulation techniques) for assisting kenshi in preparing for competitive situations. [ABSTRACT FROM AUTHOR]

Alexander Pho and Benjamin A. White respond to Nicolas Dixon's critique of mixed martial arts (MMA) through a 'companions in innocence' argument. Taking up a counterexample that Dixon is quick to dismiss, the authors argue that MMA techniques are on a par with the 'pain-leveraging' tactics used by cyclists and that pressing for a moral distinction between cycling and MMA leads to absurd conclusions about other practices. So, because cycling is morally permissible, MMA is morally permissible. This companions in innocence argument fails. But cycling can be used to develop a better, though only partial, defense of MMA. [ABSTRACT FROM AUTHOR]

Purpose: As a multidisciplined combat sport, relationships between external and internal training loads and intensities of mixed martial arts (MMA) have not been described. The aim of this study was to determine the external loads and intensities of MMA training categories and their relationship to internal loads and intensities. Methods: Twenty MMA athletes (age = 23.3 [5.3] y, mass = 72.1 [7.2] kg, stature = 171.5 [8.4] cm) were observed for 2 consecutive weeks. Internal load and intensity (session rating of perceived exertion [sRPE]) were calculated using the Foster RPE for the session overall (sRPE-training load [TL]) and segmented RPE (segRPE-TL) for each training category: warm-up, striking drills, wrestling drills, Brazilian jiujitsu (BJJ) drills, striking sparring, wrestling sparring, BJJ sparring, and MMA sparring. External load and intensity were measured via Catapult OptimEye S5 for the full duration of each session using accumulated Playerload (PLdACC) and PLdACC per minute (PLdACC·min−1). Differences in loads between categories and days were assessed via Bayesian analysis of variance (BF10 ≥ 3). Predictive relationships between internal and external variables were calculated using Bayesian regression. Results: Session overall sRPE-TL = 448.6 (191.1) arbitrary units (AU); PLdACC = 310.6 (112) AU. Category segRPE-TL range = 33.8 (22.6) AU (warm-up) to 122.8 (54.6) AU (BJJ drills). Category PLdACC range = 44 (36.3) AU (warm-up) to 125 (58.8) AU (MMA sparring). Neither sRPE-TL nor PLdACC changed between days. PLdACC was different between categories. Evidence for regressions was strong-decisive except for BJJ drills (BF10 = 7, moderate). R2 range =.50 to.77, except for warm-up (R2 =.17), BJJ drills (R2 =.27), BJJ sparring (R2 =.49), and session overall (R2 =.13). Conclusions: While MMA training categories may be differentiated in terms of external load, overall session external load does not change within or between weeks. Resultant regression equations may be used to appropriately plan MMA technical/tactical training loads. [ABSTRACT FROM AUTHOR]

"The Philosophy of Mixed Martial Arts: Squaring the Octagons" is an academic book that explores philosophical ideas and concepts related to mixed martial arts (MMA) and combat sports. The book covers a wide range of topics, including the history and nature of MMA, ethical aspects, cognitive and aesthetic aspects, violence and constraints in combat sports, and the gender debate in MMA. The authors come from diverse academic backgrounds and include practitioners and former athletes, providing a range of perspectives. While the book primarily focuses on MMA, it also extends to other martial arts and combat sports. It is a valuable resource for understanding the social and moral issues surrounding MMA and boxing, and it can be used for teaching and research purposes in various disciplines. [Extracted from the article]

Problem statement: Goal orientations, which influence learning and motivation, are categorized into task orientation (focused on skill development and personal mastery) and ego orientation (focused on outperforming others and gaining recognition). This study aims to explore how different demographics perceive success in martial arts. Approach and purpose: The research questions focused on identifying correlations between perceptions of success and demographic factors: (1) sex, (2) age, (3) type of martial art practiced, and (4) nationality. These factors were examined to understand their impact on success perceptions among martial arts practitioners. Materials and methods: The study utilized the Perception of Success Questionnaire (POSQ) to gather data from 268 participants—142 from Poland and 126 from Ukraine—selected through voluntary participation. Statistical analyses included standard deviation, coefficient of variability, Spearman's rank correlation, and ANOVA for multifactor analysis. Results: The study revealed a weak correlation between the type of martial art practiced and perception of success (r s = 0.38), indicating that the style of martial art has limited influence on success perception. There was a weak correlation between nationality and perception of success (r s = 0.20), suggesting cultural factors do not play a role. A strong correlation was found between age and perception of success (r s = 0.80), highlighting how perceptions evolve with age. A significant correlation was also found between sex and perception of success (r s = 0.90), which may reflect broader cultural patterns influenced by globalization. Conclusion: While the study identifies important demographic correlations affecting perceptions of success in martial arts, the findings are constrained by the sample size and demographic distribution, which limits the generalizability of the results. Further research with a larger and more diverse sample is recommended to deepen understanding. [ABSTRACT FROM AUTHOR]

Purpose: To analyse anterior cruciate ligament (ACL) rupture (ACLR) injury mechanisms in competitive judo using systematic video analysis, focusing on contact situations and biomechanics. Methods: Seventeen videos of judo competitions wherein athletes developed ACLRs were included and retrospectively evaluated by five analysts. In all videos, the moment of initial contact and the index frame were defined. The judo techniques leading to the injury; the occurrence of direct contact, indirect contact or noncontact mechanisms; the time interval between the initial contact and index frame; the positions of the hip, knee and foot in relation to the initial contact and index frame; and the balance status during the initial contact and index frame were recorded. Results: Eleven (65%) of ACLRs in judo involved direct contact. The mean time interval between initial contact and index frame was 15 ± 22 ms. Thirteen (77%) athletes were not balanced at initial contact. In the index frame, the hip was abducted in all cases and in combination with internal rotation in 12 (71%) cases. From initial contact to index frame, hip flexion increased in all cases; at index frame, the knee joint was internally rotated relative to the trunk in 12 (71%) cases, and the knee flexion angles increased from the initial contact. In the index frame, the foot was externally rotated relative to the knee in 12 (71%) cases, and severe valgus development of the knee with valgus collapse was observed in 14 (82%) cases. Conclusions: A direct attack on the knee was the most common injury mechanism observed. Valgus distortion appears to be the most important component of the mechanism of injury. With this knowledge, 'modified defence reactions' for specific judo techniques can be developed to reduce the injury risk. Level of Evidence: Level IV. [ABSTRACT FROM AUTHOR]

The aim of the study was to evaluate humeral retroversion, shoulder range of motion, and functional mobility in karatekas, boxers, kickboxers, and mixed martial arts fighters. This study investigated adaptive alterations in striking martial arts. Forty young healthy participants took part in the study. 20 people who professionally trained in boxing, kickboxing, karate, and Mixed Martial Arts (MMA) fighters (age: 23.5 ± 7.1, age of participation 11.8 ± 3.65, sports experience 9.55 ± 5.13, body weight 79.2 ± 13 kg, BMI 24.4 ± 3.3) were qualified for the group of athletes. 20 people (age: 27 ± 5.5, body weight 79.4 ± 7.4, BMI 24.5 ± 1.2) were included in the control group, who had no previous experience with striking combat sports. An ultrasound device and a digital inclinometer were used for the examination of the humeral retroversion angle. The mobility of the shoulder was also tested using the Functional Movement Screen (FMS). There was a significant (p < 0.001, r = 0.92) asymmetry between the dominant and non-dominant limb in the humeral retroversion angle in the athlete group. A statistically significant moderate correlation (p < 0.05) was found between the value of the retroversion angle and the range of motion of passive and active internal rotation, and external rotation, and the shoulder mobility in the FMS test. However, there were no statistically significant differences (p > 0.05) in the humeral retroversion angles between groups. The striking martial arts athletes do not exhibit significant differences in humeral retroversion compared to non-athletes, however they display notable asymmetry between limbs, with higher values in the non-dominant arm. Additionally, the observed correlation between humeral retroversion and shoulder rotation range of motion highlights the potential impact of humeral retroversion on upper limb performance and injury risk. [ABSTRACT FROM AUTHOR]

The article "Chinese and Western sports philosophy and their differences" by Zhu and Du (2024) explores the distinct social frameworks that shape Chinese and Western sports cultures, highlighting the impact of historical origins, perceptions, and values. Traditional Chinese sports, rooted in agrarian heritage, emphasize self-sufficiency and agricultural productivity, influencing the limited popularity of sports within folk society. The philosophical underpinnings of traditional Chinese sports reflect a focus on harmony, unity, and intuitive reasoning, shaped by the influence of traditional Chinese philosophy on the populace. [Extracted from the article]

Copyright of Retos: Nuevas Perspectivas de Educación Física, Deporte y Recreación is the property of Federacion Espanola de Asociaciones de Docentes de Educacion Fisica and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Retos: Nuevas Perspectivas de Educación Física, Deporte y Recreación is the property of Federacion Espanola de Asociaciones de Docentes de Educacion Fisica and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Retos: Nuevas Perspectivas de Educación Física, Deporte y Recreación is the property of Federacion Espanola de Asociaciones de Docentes de Educacion Fisica and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Retos: Nuevas Perspectivas de Educación Física, Deporte y Recreación is the property of Federacion Espanola de Asociaciones de Docentes de Educacion Fisica and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The strike force in combat sports strongly depends on the protective material's mechanical properties and energy absorption capacity. Therefore, this study aimed to estimate the effect of the protective layer thickness and repeated loading on the net force in a falling weight impact test. A falling 8-kg weight dropped from 15 cm, 25 cm, and 50 cm was used to simulate impact peak forces in an upper limb strike. Transfer linear regression functions were identified for three layers of different thickness (1.8 cm, 3.6 cm, and 5.4 cm) between the measured force and undamped force that would be measured if no protective layer was used. A decrease in damping performance under repetitive loading was assessed for the same amount of energy (30 J) absorbed by the specimens. There were 36 specimens examined in 126 tests. When the measuring apparatus was covered with one, two or three layers of Trocellen foam, the undamped force was approximately 2.8, 6.1, and 11.1 times higher, respectively (p < 0.05, R2 = 0.95), than the force measured in the kinetic design. This allows researchers to select the number of layers according to the individual needs in terms of safety and injury prevention. A single layer of Trocellen foam used in this study may be insufficient to ensure the safety of athletes in upper limb strike experiments due to possible compaction of the foam structure for deformations exceeding 80% compression and forces exceeding 5 kN, although no injury was previously observed. [ABSTRACT FROM AUTHOR]

Background: In recent years, fighting arts (e.g., Karate, Judo, Jujitsu, Boxe) have gained broader attention due to their multiple benefits, involving both physical and psychological enhancements for practitioners. Despite that, studies revolving around specific psychological characteristics such as personality traits are scarce. This study explored potential connections between the personality traits of practitioners and the specific fighting art they engage in, and investigated levels of anxiety and depression in fighting artists. Methods: A web-based cross-sectional survey instrument was developed and disseminated across the entire Italian territory. Participants were eligible if adults (> 18 years old) engaged in any fighting arts for a minimum of one year, with no additional restrictions. The survey employed the Big Five Inventory (BFI) with 44 questions to explore personality traits using the OCEAN model, and the Hospital Anxiety and Depression Scale (HADS) to explore anxiety and depression levels. Results: A total of 770 questionnaires were collected from July to September 2023. Participants were mainly men (M = 571, 74.5%; F = 199, 25.8%; mean age 45.2 ± 14.8), and most of the participants practised in the North of Italy (N = 493, 64.0%). The mean age of practice was 28.5 ± 14.9 years and the most practised fighting arts were Judo (N = 349, 45.3%), Karate (N = 272, 35.3%) and Jujitsu (N = 42, 5.5%). Personality traits were identified as openness, conscientiousness, extroversion, agreeableness, neuroticism and the results were as follows: O) 40.1 ± 6.30; C) 37.1 ± 5.78; E) 28.2 ± 5.64; A) 35.1 ± 5.08; N) 19,8 ± 5,51. Anxiety and depression scored respectively 5.93 ± 3.14 and 3.67 ± 2.74. Conclusions: Fighting artists exhibit elevated levels of positive personality traits, such as openness, conscientiousness, extraversion, and agreeableness. Conversely, neuroticism tends to be lower among them. Moreover, anxiety and depression levels among fighting artists are lower than the Italian normative values. Fighting arts, particularly Karate and Judo, emerge as promising avenues for adults seeking innovative or complementary strategies to foster positive personality traits (e.g., openness, conscientiousness) while mitigating anxiety and depression. Future studies could explore other personality traits, including Machiavellianism, and explore additional psychological characteristics such as aggressiveness to provide a more comprehensive understanding. [ABSTRACT FROM AUTHOR]

This study aims to analyse the differences in tactical and technical elements between winners and non-winners and identify key strategic and technical elements contributing to performance in Para Taekwondo. Notational analysis was used to achieve these objectives, and 78 Para Taekwondo matches (36 men's matches and 42 women's matches) from the 2020 Tokyo Paralympics were analysed. The recorded videos were analysed using Adobe Premiere Pro software (version 24.2) with a frame-by-frame analysis of 0.033 seconds. The main results are: a) winners had significantly higher kick-to-score ratios compared to non-winners (male: 38.3 ± 17.37% vs. 19.4 ± 11.95%, p <.001; female: 32.7 ± 18.17% vs. 11.0 ± 7.72%, p <.001); b) winners had fewer attack attempts but higher scoring efficiency; c) non-winners used the front leg more frequently (male: 43.2% vs. 39.7%, p <.05; female: 47.5% vs. 42.7%, p <.001); d) logistic regression analysis showed that kick-to-score ratio significantly impacted match outcomes for both male (OR = 1.10, p <.001) and female athletes (OR = 1.19, p <.001), while offensive frequency negatively impacted female athletes' match outcomes (OR = 0.89, p =.002). This study emphasizes the importance of scoring efficiency and strategic defensive actions, consistent with patterns in Olympic Taekwondo. It provides insights for enhancing athlete training and match strategy in combat sports, enriching the understanding of Para Taekwondo. [ABSTRACT FROM AUTHOR]

The objective of this research was twofold. On the one hand, to demonstrate that young people with intellectual disabilities (ID) can practice taekwondo (TKD) and, on the other hand, to assess the effect of this practice. For this purpose, a longitudinal study was designed with pretest and posttest measures. Thirteen young people between 14 and 35 years of age with ID underwent a training of adapted TKD for 20 weeks. After observing that the participants followed the trainer’s instructions and performed the techniques, the effect of the training on their motor skills was evaluated. Directionality was assessed using the modified agility test (MAT2) and balance and coordination using the Observation of Motor Competence Scale (ECOMI). The results showed that people with ID can practice TKD and that training improves their motor skills of directionality, balance, and coordination, although not all differences were significant. Thus, it can be concluded that people with ID can practice a combat sport such as TKD as long as it is adapted to their characteristics and that its practice has beneficial effects, improving performance in their motor skills. [ABSTRACT FROM AUTHOR]

This study was conducted to investigate the attitudes and behaviours of kickboxing, Muay Thai and wrestling athletes towards martial arts. A total of 162 athletes (43 females and 119 males) voluntarily participated in the study. Participants' attitudes were assessed on the basis of age, gender, duration of participation, licensing status and sport discipline. Data were collected using the Attitudes Towards Combat Sports Scale and normality was checked using the Shapiro-Wilk test, followed by Mann-Whitney U and Kruskal-Wallis tests for analysis. The results indicate that female athletes are more upset about losing a match than male athletes (p < 0.05). In terms of age groups, younger athletes expressed higher levels of satisfaction and happiness during sport participation (p < 0.01). Regarding the duration of sport participation, athletes with more experience were found to be more proficient in controlling excitement and managing emotions (p < 0.05). Analysis of licence status revealed that national and professional athletes had a wider social network compared to amateur athletes (p < 0.01). Kickboxing athletes reported higher emotional and social satisfaction compared to other disciplines (p < 0.01). This study highlights the positive impact of martial arts on the psychological and social development of individuals and makes a significant contribution to the literature in this area. In addition, by comparing the effects of different martial arts on athletes, it sheds light on the psychological and social benefits of these sports. In this context, the key factors influencing athletes' attitudes and behaviours have also been analysed. [ABSTRACT FROM AUTHOR]

Purpose: Participation in Brazilian jiu-jitsu and mixed martial arts has increased over the last three decades. These sports feature submission attacks, including strangles. These strangles, termed “chokes” in this context, primarily limit blood flow to the brain via compression of neck vasculature. There has been discussion in literature of the possibility of measurable cognitive effects following transient choking episodes. The present study used the King-Devick test (KDT) platform, a tablet-based reaction time and accuracy task designed to measure participants’ number recognition, cognition, and verbal expression. This task requires functional vision, saccadic eye movements, comprehension, and expression. Methods: Volunteer participants were screened for exclusion (prior brain injury) criteria and survey information before testing. Athletes were tested with the KDT immediately before a Brazilian jiu-jitsu training session, again immediately after succumbing to either a choke (“Choke” arm) or nonchoke (“Non-Choke” arm) submission while sparring, and again after a 10-min rest period following the postsubmission test. Analysis was done on test failures, total test times, and individual difference scores between baseline and subsequent testing. Results: Sixty-two (32 Choke, 30 Non-Choke) participants were analyzed. There was no significant difference between Choke and Non-Choke in test failures (χ 2 (1,62) = 1.25, P = 0.263), total times (t(60) = 0.62, P = 0.540; 95% CI, −3.44 to 6.51), and individual difference scores (t(60) = 0.29, P = 0.776; 95% CI, −2.41 to 3.21). Conclusions: There were no significant differences between study arms in any of the three analyzed measures. This suggests that cognitive functioning, as measured by the KDT, is not affected by transient choking episodes. [ABSTRACT FROM AUTHOR]

Although the relationship between high-impact sports like football and basketball and the development of knee osteoarthritis is well established, the effect of martial arts on the knee joint remains unclear. To compare the imaging abnormalities of knee joints and T2 relaxation times of cartilage in professional martial arts athletes and healthy controls. Cross-sectional study. Hospital imaging center. Nine asymptomatic professional martial arts athletes and 18 healthy volunteers. We performed 3T magnetic resonance imaging of the knee on both legs of athletes and the dominant leg of controls. The magnetic resonance imaging protocol included conventional sequences used for morphological assessment (cartilage, meniscus, ligaments, joint effusion, and bone marrow edema) and T2 mapping used for quantitatively evaluating the cartilage. Knee cartilage was manually divided into 8 regions, and T2 relaxation times of the corresponding subregions were measured. Fisher exact test and t test were used to compare the frequency of lesions and cartilage T2 values both between groups and between the athletes' limbs. P <.05 was considered significant. Professional martial arts athletes exhibited significantly higher frequencies of cartilage (55.6% vs 11.1%, P =.023) and ligament lesions (66.7% vs 16.7%, P =.026) compared with the control group. Athletes showed higher T2 values in 3 distinct cartilage segments: the central weight-bearing segment of the medial femoral condyle (P =.006), the medial tibial plateau (P =.012), and the trochlea (P =.032), when compared with the controls. Additionally, the dominant leg of athletes showed significantly higher T2 values compared with the nondominant leg. The findings demonstrated the impact of martial arts on the knee joint, characterized by higher prevalence of lesions and elevated cartilage T2 values, particularly in the medial compartment. The dominant legs of martial arts athletes seem to have higher risk of cartilage degeneration due to the observed interlimb differences in T2 values. [ABSTRACT FROM AUTHOR]

In combat sports, competition preparation is crucial, but research on this topic has been limited due to a lack of measurement tools. This study aimed to develop and validate the Multidimensional Assessment of Preparation for Sport Competition (MAPSC). In the first step, 61 athletes and 39 coaches collaborated to conceptualize and develop preliminary items, resulting in five domains (psychological, physical, emotional, environmental, and informational preparation) and the creation of 52 preliminary items. The second step collected data from 608 student-athletes and utilized exploratory and confirmatory factor analysis to test internal validity. The MAPSC was structured to include five-factors and 25 items. Finally, the correlations between MAPSC, self-management, and sport confidence, as well as differences in MAPSC based on winning experience in national competitions, were tested. In conclusion, MAPSC has been developed and confirmed as a valid measurement for assessing competition preparation strategies in combat sport. Coaches and athletes can use this tool to prepare for competitions systematically and strategically. [ABSTRACT FROM AUTHOR]

The authors comment on a paper on the ideas of legendary martial artist Bruce Lee and how it aligns with contemporary theorizing in movement skill acquisition, which references a study by S. Myszka et al., published within the issue. They tackle concerns on misinterpretation and inaccuracies regarding martial arts in the paper, and their proposal that Lee's philosophy conformed to principles of ecological dynamics framework.

Obtaining kinematic analysis through a gold-standard method on sports during official competitions is challenging. Markerless tracking system can be an alternative to provide physical and technical-tactical performance data about the athletes. Therefore, we aimed to verify whether the markerless system (OpenPose) accurately tracks taekwondo athletes' positions on the official combat area. Six taekwondo athletes performed steps and kicks in a self-selected way in two conditions: with and without an opponent. To capture the movement, seven optoelectronic (marker-based system) and two digital cameras (OpenPose markerless system) were placed around the combat area at an acquisition frequency of 120 Hz and 30 Hz, respectively. Positions of the body centre of mass and midpoint of the feet were calculated and analysed through two and three-dimensional reconstruction both. The root mean square (RMS) error comparing both methods ranged from 0.13 to 0.32 m and 0.05 to 0.16 m for two and three-dimensional analysis, respectively. Bland-Altman analysis accepted the agreement between the capture systems, and the intraclass coefficient correlation (ICC) values were classified as excellent (ICC > 0.90) in all analysis. In conclusion, the OpenPose markerless system presents promising results for its use in tracking taekwondo athletes' position on the competition area. [ABSTRACT FROM AUTHOR]

Objectives. This study aimed to compare the effects of wrestling and sumo wrestling as similar combat sports activities in a training program on technical wrestling scores, wrestling performance indexes, and intrinsic motivation in youth practitioners. Materials and methods. A randomized controlled trial using a single-blinded design, and repeated measures of parallel groups (sumo-based group: EG, n = 19, aged = 12.42 ± 0.87 years; and only wrestling group: CG, n = 19, aged = 12.41 ± 0.78 years) was conducted. Three 65-minute weekly sessions for four weeks were dedicated to the interventions. A two-factor mixed analysis of variance (ANOVA) model with repeated measures was performed to assess the group vs. time impact analysis. Results. The findings revealed a significant interaction between the variables, whereby higher values were observed for technical wrestling scores on the attempted head and arm throw test (F1;18 = 356.2; p < 0.001; ES = 0.60), wrestling performance indexes on the pushing opponent test (F1;18 = 8.31; p = 0.009; ES = 0.08), intrinsic motivation for effort/ importance item (F1;18 = 12.24; p = 0.003; ES = 0.82) and intrinsic motivation item (F1;18 = 19.36; p = 0.000; ES = 0.24) in favor of EG. Conclusions. In conclusion, the sumo-based training program produces significantly greater responses on technical performance, and intrinsic motivation, specifically regarding wrestling training. [ABSTRACT FROM AUTHOR]

This study investigates the rapid weight loss (RWL) and rapid weight gain (RWG) of contest winners and losers from Muay Thai (MT) and mixed martial arts (MMA) events. The relationship between rapid weight change variables of males and females, and competitive success is also examined. Data from a weight management questionnaire was collected one day post-competition from 185 participants across 24 fight events, resulting in 263 responses (MMA: n = 78, MT: n = 185). Official and secondary weigh-in data were provided by the Combat Sports Commission. The results show that in MT, contest winners compared to losers had significantly greater RWL–7 days (5.9 ± 2.6% vs. 4.6 ± 2.7%, p = 0.01), RWG (6.2 ± 2.9% vs. 4.7 ± 2.8%, p = 0.003), and RWG/RWL ratio (108% [86–132%] vs. 86% [60–119%], p = 0.038), while no significant differences were observed for MMA. Mixed logistic regression models that controlled for age showed that a 1% increase in female RWL–24 h ([OR = 1.57, R2 = 0.105, p = 0.001]) was associated with a 1.6 times higher likelihood of winning compared to female athletes without this increase. We emphasise that associations do not imply causation, and it is possible that other factors which align with rapid weight change practices may impact the observed relationship. Nonetheless, MT contest winners show greater RWL, RWG, and RWG/RWL ratio than losers, and female rapid weight changes appear to be associated with competitive success in this cohort. [ABSTRACT FROM AUTHOR]

Background: The extensor apparatus of the knee is of paramount importance in generating the torque needed for a countermovement jump (CMJ), especially in jumping athletes. In anterior cruciate ligament reconstruction (ACLR) procedures, graft harvesting from the extensor apparatus may dramatically affect extensor strength and jumping performance. Hypothesis: The focused jump training of professional jumping athletes would increase the likelihood of restoring jumping performance after ACLR, despite the graft choice (autologous bone-patellar tendon-bone [BPTB] or hamstring [HS] tendon). Study Design: Cohort study; Level of evidence, 3. Methods: A retrospective evaluation of prospectively collected data was carried out. Only professional athletes were included, and all surgical procedures were performed by a single experienced surgeon. Data collection considered the type of surgery, sports activity, and functional evaluation at 3 months after surgery. From the functional evaluation, data on single-leg hop (SLH) test, triple hop (TH) test, and CMJ were extracted. Limb symmetry index (LSI) for maximal voluntary isometric contraction of the quadriceps and for each of the jumping tests was calculated. Multiple analysis of covariance (ANCOVA) models were used to assess mean differences among groups for the LSI in CMJ, SLH, and TH and estimate the effect of confounders. Results: From a subsequent series of 208 athletes, 44 professional athletes were included for data collection. Of these, 26 were male and 18 were female. A jumping sport (basketball, volleyball) was played by 17 athletes, while a running sport (soccer, judo, rugby, tennis, ski) was performed by 27 athletes. The mean time from injury to surgery was 17.8 ± 14.5 days. At 90 days from surgery, the overall mean LSI for CMJ was 85.3% ± 8.9%, for SLH was 92.2% ± 6.4%, and for TH was 90.8% ± 6.1%. When ANCOVA was fitted using the interaction term with BPTB autograft and jumping sport, a nonsignificant effect on LSI for CMJ (P =.56), SLH (P =.72), and TH (P =.98) was observed. Conclusion: The results of the present investigation on professional athletes showed that no difference occurred within the study cohort in overall jumping performance between jumping and running athletes undergoing ACLR either with BPTB or with HS tendon grafts. Although some evidence suggests that quadriceps strength may be dramatically affected by the harvesting of BPTB, the overall performance of the jump was not compromised. [ABSTRACT FROM AUTHOR]

Having a certain level of knowledge is always important in doing any task correctly. However, when it comes to being a sports coach, a person needs to have a deep understanding of the sport's rules, the technical aspects involved, and the various physical training modalities. This study aims to identify the knowledge level of karate coaches regarding physical training modalities, on the basics of physical training according to sex, academic qualification, belt degree, classification degree and years of experience. Fifty senior coaches of both sexes were deliberately selected after showing interest in participating into the current study. The study was based on the previously developed and validated questionnaire (Martial Arts Coaches Knowledge Level Questionnaire). The questionnaire is composed of several axes with multiple choice questions to measure the cognitive results of karate coaches in the areas of physical training concerning human exercise physiology, functional sports anatomy, sports nutrition, sports injuries and first aid. The results showed a weak level of knowledge among karate coaches and the correct answers (total level) in all areas scored 45.7%, and coaches over 5 Dan have scored higher levels compared 3 Dan (p=0.033, 0.010; respectively). Based on these findings, we conclude that karate coaches in Jordan have a significant knowledge gap in the field of physical training methods. This gap may impact the effectiveness of training programs and athlete performance, emphasizing the need for targeted educational interventions and continuous professional development programs to enhance coaches' understanding and application of physical training modalities. Such improvements could ultimately lead to better athlete outcomes and a higher level of performance in the sport. [ABSTRACT FROM AUTHOR]

This preliminary exploratory study is the first to thoroughly examine dynamic balance, inter-limb asymmetry, and flexibility in jiu-jitsu athletes, focusing on differences by fighting style, competition level, gender, and limb dominance. A total of 25 jiu-jitsu fighters participated in this cross-sectional study, which used repeated measures to ensure the reliability of the findings. Participants underwent measurements for limb lengths and were assessed for dynamic balance using the Lower and Upper Quarter Y Balance Test (LQYBT and UQYBT) and for flexibility with the Sit and Reach Test (SR). The analysis included evaluating the reliability of these tests, as well as comparing outcomes based on gender, fighting styles, competition levels, and limb dominance. The results showed that the LQYBT and UQYBT tests were reliable (ICC=0.74-0.93). There were no significant differences in dynamic balance and flexibility between different fighting styles. No significant differences were found in balance tests between the dominant and non-dominant limbs, but there were notable inter-limb asymmetries in certain measures. This study provides preliminary insights for coaches and researchers by offering reference values for balance, flexibility, and inter-limb asymmetry in jiu-jitsu athletes. However, future research with larger sample sizes is needed to better understand the differences among subgroups in this sport. [ABSTRACT FROM AUTHOR]

Background: Traumatic dental injuries (TDIs) are a common complication in sports, with an overall prevalence ranging from 0.71% to 60%. Kickboxing is a high-risk combat sport for trauma to the facial region. Methods: A total of 142 5-to-65-year-old amateur athletes participated in the survey with a questionnaire that was released during their regular practice days. The questionnaire was structured into three parts: (1) questions about age, gender, type, and time of sports practice; (2) questions about dental injuries, personal experience, and awareness of emergency management, particularly about tooth avulsion; (3) questions about wearing a mouthguard for TDI prevention. Results: A total of 13 percent of athletes suffered a TDI while training or fighting. Regarding first aid, 61% of the participants in this survey are aware of the possibility of replanting a tooth after its avulsion; 10% believe that the tooth should be replanted within 15 min, and 37% of athletes believe that it should be kept wet. The mouthguard is known to the majority of athletes (94%), and 66% were informed by the coach; 68% of the athletes use it. Seventy-four percent of the mouthguards were purchased in a sports shop. Conclusions: A relatively low prevalence of TDIs was observed in players in the sample. A lack of information about the emergency management of tooth avulsion and about the type of mouthguard to wear emphasizes the importance of educational training by dentists to athletes and coaches. [ABSTRACT FROM AUTHOR]

Copyright of Retos: Nuevas Perspectivas de Educación Física, Deporte y Recreación is the property of Federacion Espanola de Asociaciones de Docentes de Educacion Fisica and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Retos: Nuevas Perspectivas de Educación Física, Deporte y Recreación is the property of Federacion Espanola de Asociaciones de Docentes de Educacion Fisica and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Ido Movement for Culture. Journal of Martial Arts Anthropology is the property of Idokan Poland Association and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Ido Movement for Culture. Journal of Martial Arts Anthropology is the property of Idokan Poland Association and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Ido Movement for Culture. Journal of Martial Arts Anthropology is the property of Idokan Poland Association and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Ido Movement for Culture. Journal of Martial Arts Anthropology is the property of Idokan Poland Association and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Ido Movement for Culture. Journal of Martial Arts Anthropology is the property of Idokan Poland Association and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Technique-specific high-intensity interval training (HIITTS) has been proven to be an effective method to enhance the sport-specific bio-motor abilities of taekwondo athletes. However, studies regarding its effects on comprehensive measures of cardiorespiratory fitness are limited. Furthermore, there is a lack of clarity regarding the extent of individual adaptations to this method compared to HIIT in the form of repeated sprints (HIITRS). This study compared the individual adaptations to HIITRS and HIITTS on cardiorespiratory fitness and anaerobic power in trained taekwondo athletes (age = 19.8 ± 1.3 years; body mass = 75.4 ± 9.1 kg; height = 1.73 ± 0.0 .m). All participants completed three sessions per week of a 60-minute regular taekwondo training. Following the 60-minute training, participants completed 3 sets of 10 x 4 s all-out HIITRS or same sets of repeated kicks with both legs (HIITTS) over a 6-week training period. In both groups, rest intervals were set at 15 seconds between efforts and one minute between sets. Before and after the training period, participants underwent a series of lab- and field-based tests to evaluate cardiorespiratory fitness and bio-motor abilities. Both interventions resulted in significant improvements in maximum oxygen uptake (VO2max), O2 pulse (VO2/HR), first ventilatory threshold (VT1), second ventilatory threshold (VT2), cardiac output (Qmax), stroke volume (SV), peak power output (PPO), average power output (APO), squat jump (SJ), and countermovement jump (CMJ). However, linear speed (20-m speed time) and taekwondo-specific agility test (TSAT) only responded to HIITRS. HIITRS resulted in greater changes in VO2max, VO2/HR, VT2, and Qmax, and higher percentage of responders in measured parameters than HIITTS. In addition, HIITRS elicited lower inter-individual variability (CV) in percent changes from pre- to post-training in all measured variables. These results suggest that incorporating 3 sessions per week of HIITRS into regular taekwondo training results in significantly greater and more homogenized adaptations in cardiorespiratory fitness and bio-motor abilities than HIITTS among trained taekwondo athletes. [ABSTRACT FROM AUTHOR]

The aim of this study was to compare the acute effects of compression contrast therapy (CT) and dry needling therapy (DN) on muscle tension (MT), muscle strength (Fmax), pressure pain threshold (PPT), and perfusion (PU) following fatigue of forearm muscles (e.g., flexor carpi radialis) in combat sports athletes. A single-blind randomized controlled trial was employed. Participants first underwent muscle fatigue induction, which involved sustaining an isometric handgrip at 60% of their maximum voluntary contraction in 5-second cycles. This was followed by exposure to one of the regenerative therapies. Forty-five participants were randomly assigned to one of three groups: CT/DN (n = 15), CT/ShDN (n = 15), and ShCT/DN (n = 15). The sham condition (Sh) involved a simulated version of the technique. Measurements were taken at four time points: (i) at rest; (ii) immediately after exercise that led to a state of fatigue; (iii) 5 minutes after therapy (PostTh5min); and (iv) 24 hours after therapy (PostTh24h). Each participant was exposed to one experimental condition and one control condition, thereby undergoing evaluation in two sessions. Significant differences between groups were found in MT during the PostTh5min (p = 0.005), as well as in PU during the PostTh5min (p < 0.001) and PU during the PostTh24h (p < 0.001). All groups showed significant improvements at 5 minutes post-therapy compared to immediately post-muscle fatigue. As conclusions, CT/DN seems to be significantly better for enhancing MT and PU after 5 minutes of muscle fatigue induction. Using either CT, DN, or both combined is recommended to enhance the recovery of muscle functionality and properties, favoring recovery and potentially speeding up performance enhancement. [ABSTRACT FROM AUTHOR]

Anaerobic training in high-level athletes is of considerable interest to practitioners aiming to optimize performance. This study compared the impact of interval anaerobic training (IAT) sessions consisting of either high-intensity running or throwing that were performed twice a week together with regular judo training on the anaerobic and aerobic performance of experienced judo athletes. Employing a repeated-measures, counterbalancing, research design, 12 national team judo athletes (7 women and 5 men; mean age, 20.4 ± 0.95 years; mean judo training experience, 13.4 ± 1.4 years; competitive level, black belt first and second Dan) performed each IAT modality for 6 weeks, for a full training cycle of 12 weeks. Assessments of their anaerobic fitness (Cunningham and Faulkner Anaerobic Treadmill Test), sport-specific anaerobic fitness (Special Judo Fitness Test [SJFT]), and aerobic capacity (maximal incremental treadmill running test) were performed before, after 6 weeks, and after 12 weeks of training. The uphill running performance improved by 13.1% over the 12-week period (p = 0.047). Simultaneously, there was a 9.0% improvement in the SJFT index and a 6.9% increase in the number of throws (p = 0.011 and p = 0.017, respectively). Although a trend for throwing drills being more effective than interval sprint running was observed, the interaction effect lacked statistical significance (p = 0.074). Moreover, no substantial changes were noted in aerobic endurance markers. In conclusion, this study suggests that incorporating specific and nonspecific high-intensity drills into a routine training regimen may enhance anaerobic capacity among well-trained judo athletes, potentially leading to favorable competitive outcomes. [ABSTRACT FROM AUTHOR]

Combat sports is a term applied to various competitive contact sports involving 2 competitors engaging in a bout or contest under a specific ruleset. Little is known about combat sports athletes' sleep and nutritional knowledge. This study aimed to assess (a) sleep behaviors, (b) alcohol and shiftwork disorders, and (c) the nutritional knowledge of combat sports athletes. Subjects completed various demographic questions and estimations of their weight management practices and validated surveys, including the Athlete Sleep Behavior Questionnaire, Shiftwork Disorder (SWD) Screening Questionnaire, Alcohol Use Disorders Identification Test, and the Abridged Nutrition for Sports Knowledge Questionnaire. A total of 844 combat sports athletes completed the survey, 79% male, height of 177 ± 10 (cm), and body mass of 79 ± 15 (kg). Subjects were categorized into their specific combat sport type (e.g., boxing or Brazilian jiu-jitsu [BJJ]) and by their level (professional or amateur). Sleep quality was average for all combat sport types and risk prevalence of shiftwork disorder at 11%. Mann-Whitney U tests revealed that amateurs, compared with professional strikers (p = 0.046, CLES = 0.80), boxers (p = 0.01, CLES = 0.78), and BJJ (p = 0.046, CLES = 0.61) athletes, consumed significantly more alcohol. A Friedman test showed significant (p < 0.001, W = 0.51) differences in weight between time points, with most combat sports athletes reducing weight for competition. An overall nutritional knowledge average of 55% was reported. This study highlights a critical gap in the knowledge and practices of combat sports athletes in relation to sleep behaviors and disorders, alcohol consumption, and nutritional knowledge, emphasizing the need for targeted educational interventions. [ABSTRACT FROM AUTHOR]

Sexual assault is a highly consequential public health issue associated with multiple mental health sequelae. Given the mental health impact of sexual assault, understanding the recovery strategies survivors utilize is critical. A growing body of work suggests that physical activity may represent a powerful recovery tool post-trauma. However, existing work has primarily focused on the benefits of yoga or cardio exercise. Martial arts may provide unique benefits to sexual assault survivors including increased self-defense self-efficacy, empowerment, and corrective experiences with trauma reminders. However, no extant research has examined the perceived benefits of recreational martial arts practice for sexual assault survivors. The current study utilized content analysis of responses to items assessing the perceived recovery benefits of martial arts among a sample of primarily cisgender women martial arts practitioners (n = 50) with sexual assault histories. Survivors described multiple recovery benefits to their practice. Some benefits described were similar to those associated with other forms of physical activity, such as access to social support, improved physical health, and improved well-being. Other benefits identified were martial arts-specific including survivors viewing martial arts practice as a tool to reclaim bodily autonomy, decrease perceived vulnerability to future sexual assault, and manage PTSD symptoms and triggers. Findings support the potential of martial arts as a powerful recovery tool for survivors. Future research should evaluate how martial arts practice can be structured to ensure that it is healing and empowering. [ABSTRACT FROM AUTHOR]

Female learning of movement in elite combat sports has not been studied enough to date. Literature on movement learning and teaching of complex skills has not, to date, focused on karate, and the scarce literature on the learning of elite karate practitioners mostly does not focus on women. Nevertheless, women fighters participated in karate as an Olympic sport, even if such status was temporary, limited to Tokyo 2020 (2021). In an analogy with Iris Marion Young's (1980) publication 'throwing like a girl', our aim in this study was to investigate what it means to learn 'to fight like a girl' and if there is a feminine learned fighting style. We have carried out an ethnographic project focusing, due to the unexpected impact of COVID-19, mainly on interviewing the female Spanish karate team in preparation for the Olympic Games. We interviewed 14 women athletes of the team and their four male coaches twice each and analysed 28 videos of women athletes displaying their best athletic performances, according to themselves. In this article we are focusing on the analysis of 20 videos of the kumite modality, then reflecting on this analysis with data from interviews of the four coaches and ten of the athletes, the kumite athletes. We developed a series of criteria in order to carry out the task of observation and analysis of the gendered martial-sportive movement supported by the literature, coaches' perspectives and athletes' views. The main concepts derived from the video analysis were the use of space, restricted movements; absence of melee work; and difficulty in carrying out projections/sweeps. Sports karate is still configured as a (hetero)normative environment, supported in tradition, be that of martial art with its pedagogy and of sport as a male preserve. This context leads to a view of women's learning to perform as inferior to men's, perpetually comparing them, in the hierarchical structure established within the field. Concepts of equality and equity are undermined, and by performing differently, or not matching the male model, women have their performance of some complex movements qualified as a natural inability. We conclude that there is a feminine way of learning to fight, but only with generalized characteristics since there is a rich plurality of styles among these elite sporting women. For the field, to fight like a girl means inferior performance in comparison with men's performance, however, for us, it means really 'to fight', not just on the mat, and we see such comparison as untenable. [ABSTRACT FROM AUTHOR]

The study objective is to test general- and sport-specific adaption during a single training on the Flexibility Trainer. The device is designed to trigger residual muscle tone decreases of the hip-joint muscles by providing (nearly) isokinetic resistance during a full range of motion strength training in adduction/abduction and flexion/extension direction. Static hip flexion and abduction as well as kinematics of double side kicks were analysed on 15 participants before and after training (or rest for controls) to assess general flexibility and sport-specific movement range. Tests were recorded by a Vicon® motion capturing system. Static hip flexion and abduction as well as leg vector spreading angles (VSA) at different nodes of the kick were selected to determine adaptions of active and passive flexibility. Normalised hip joint moments, movement velocities and VSA were calculated to evaluate the training with the device. ANOVAs with 4-repeated measures and Friedman tests were performed to identify time differences and Bonferroni post-hoc test to identify between-subject effects. Significant differences were found for both static flexibility tests (Flexion = 13.65%; Abduction = 9.94%) and the VSA at specific action phases (≤15.15%). Results indicate that short-term adaptions when training with the Flexibility Trainer are exceeding comparable literature showing improved flexibility and sport-specific performance. [ABSTRACT FROM AUTHOR]

BACKGROUND: Long-time judo training can lead athletes to develop upper limb asymmetry and shoulder asymmetry during force production, mainly in the action of pulling, pushing, and throwing; that requires higher strength and velocity of the internal and external rotators of the shoulders, which may also result in shoulder injury, or a decrease in judo performance. OBJECTIVE: To investigate asymmetries in concentric force of the internal and external shoulder rotators of the dominant and non-dominant upper limbs in high-level judokas at angular velocities of 60, 180, and 300∘/s. METHODS: 14 highly trained male judokas (age 24.4 ± 4.8 yrs.; body mass 87.9 ± 18.7 kg; height 1.8 ± 0.1 m). All participants performed 5 attempts of movement concentric internal and external rotation of the shoulder with 3 angular velocities (60∘/s, 180∘/s, and 300∘/s) in an isokinetic dynamometer (Cybex® Humac Norm Dynamometer CSMI, model 502140). The data were analyzed by independent t-student (discrete analysis) a statistical parametric mapping (SPM) curve (one-dimensional analysis). RESULTS: There was no difference in dominant vs. non-dominant for discrete analysis (p > 0.05). There was no difference in dominant vs. non-dominant for SPM analysis. None of the comparisons surpassed the comparison cut-off (tcrit) for the t -test (p > 0.05). CONCLUSIONS: Based on results, judokas do not present significant asymmetries in concentric force of external or internal shoulder rotators when compared to the dominant vs. the non-dominant upper limb according to discrete and one-dimensional (SPM) analysis. [ABSTRACT FROM AUTHOR]