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2. Effect of muscle length on maximum evoked torque, discomfort, contraction fatigue, and strength adaptations during electrical stimulation in adult populations: A systematic review

Author

Cavalcante, Jonathan Galvão Tenório, primary, Ribeiro, Victor Hugo de Souza, additional, Marqueti, Rita de Cássia, additional, Paz, Isabel de Almeida, additional, Bastos, Júlia Aguillar Ivo, additional, Vaz, Marco Aurélio, additional, Babault, Nicolas, additional, and Durigan, João Luiz Quagliotti, additional

Published
2024
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3. Influence of a Modified versus a Typical Microcycle Periodization on the Weekly External Loads and Match Day Readiness in Elite Academy Soccer Players.

Author

Douchet, Tom, Paizis, Christos, Carling, Christopher, and Babault, Nicolas

Subjects
ELITE athletes, RATE of perceived exertion, MECHANICAL wear, PREPAREDNESS
Abstract

A typical weekly periodization strategy in soccer positions the most demanding sessions four and three days before the match-day (MD-4/MD-3). However, a modified periodization strategy could intersperse the two most demanding sessions with a low-load training session. This study aimed to investigate the impact of these periodizations on external loads and MD readiness. Twenty academy players were tested. The modified weekly periodization strategy included a low-load training session between the two most demanding sessions, while the typical periodization implemented them consecutively. Players wore a GPS and rated their perceived exertion (RPE) during the most demanding sessions. Players were also tested using a CMJ, a 20-m sprint, the Illinois agility test (IAT), and the Hooper questionnaire on MD-4 to obtain baseline values (CONTROL) and on the match-day (TEST). CONTROL values were similar during experimental weeks. During the second most demanding session, players covered greater distances for the modified versus the typical periodization in the 20-25 km/h (306.3 ± 117.1 m vs. 223.5 ± 92.2 m, p < 0.05) and >25 km/h speed zones (89.5 ± 44.8 m vs. 67.2 ± 44.5 m, p < 0.05). On the MD, CMJ, 20-m sprint, and IAT performances were similar between both periodizations. However, 10-m time (1.89 ± 0.10 s vs. 1.92 ± 0.09 s, p < 0.05) and the Hooper index score (7.90 ± 2.14 a.u. vs. 9.50 ± 3.44 a.u., p < 0.05) were significantly lower during the modified periodization strategy. A decreased training load session positioned between the most demanding sessions may be of interest in elite academy soccer players as it can lead to increased weekly external loads and readiness on the MD. [ABSTRACT FROM AUTHOR]

Published
2024
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10. Acceleration Capacity and Vertical Jump Performance Relationship in Prepubertal Children.

Author

Chanel, Baptiste, Babault, Nicolas, and Cometti, Carole

Subjects
VERTICAL jump, BROAD jump, SPRINTING, ADULTS
Abstract

Sprint and jump abilities are considered basic skills that are regularly evaluated in training and school contexts. The correlations between these two skills have previously been established in adults and adolescents, but they have not been fully assessed in children. The present study aimed to explore sprinting and jumping ability in prepubertal boys and girls. Thirty-one prepubertal individuals (aged 8–11 years) were assessed during sprinting for different distances (5, 10, and 20 m) and using different vertical and horizontal jump modalities (squat jump, countermovement jump, broad jump, and hop test). Correlations between the different results were tested. Strong correlations were found between vertical jump and sprint performances, especially over short distances. These results suggested that vertical jump tests are more sensitive than horizontal jumps to reveal acceleration capacity in children. [ABSTRACT FROM AUTHOR]

Published
2024
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20. Neuromuscular electrical stimulation in critically ill traumatic brain injury patients attenuates muscle atrophy, neurophysiological disorders, and weakness: a randomized controlled trial

Author

Silva, Paulo Eugênio, de Cássia Marqueti, Rita, Livino-de-Carvalho, Karina, de Araujo, Amaro Eduardo Tavares, Castro, Joana, da Silva, Vinicius Maldaner, Vieira, Luciana, Souza, Vinicius Carolino, Dantas, Lucas Ogura, Cipriano Jr, Gerson, Nóbrega, Otávio Tolêdo, Babault, Nicolas, and Durigan, Joao Luiz Quagliotti

Published
2019
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22. Positional Differences in Absolute vs. Relative Training Loads in Elite Academy Soccer Players

Author

Douchet, Tom, Paizis, Christos, Roche, Hugo, and Babault, Nicolas

Subjects
Research Article
Abstract

Weekly training loads are typically reported using absolute values and are not individualized according to competition positional demands (relative values). The aim of this study was to evaluate absolute and relative training loads and compare across playing positions during a full in-season in an elite soccer academy. 24 elite academy soccer players, categorized into five positions (CD: central defender [n = 4]; FB: full back [n = 5]; CM: central midfielder [n = 6]; WM: wide midfielder [n = 5]; FW: forward [n = 4]), were monitored using a global positioning system. Absolute training load was calculated using the total distance, the distance at moderate-speed ([15-20[ km·h(-1)), high-speed ([20-25[ km·h(-1)), sprint (> 25 km·h(-1)), the total number of accelerations (> 3 m·s(-2)) and decelerations (< -3 m·s(-2)). Relative training load was calculated by dividing absolute training loads by mean values from the competitive matches. Training loads were determined daily according to their distance from match day (MD). One-way ANOVAs were performed to evaluate differences between playing positions. Absolute moderate-speed distance was greater for WM compared to CD (p = 0.015, and p = 0.017), while the opposite was shown for relative values (p = 0.014, and p < 0.001) on MD-4 and MD-3, respectively. The absolute moderate-speed distance was not different between CD, FB, CM, and FW, whereas relative values were greater for CD on MD+2 and MD-4 (p < 0.05). FB and WM performed greater absolute high-speed distance than CD on MD-4 and MD-3 (p < 0.05) while no difference was highlighted for relative values.Our results demonstrated that in the present academy players, training load for CD was underestimated using absolute training loads for moderate and high-speed distances. In contrast, relative training loads highlighted WM as an underloaded position. Therefore, relative training loads are recommended as they contextualize training loads according to competitive demands and favor training individualization.

Published
2023

30. The Influence of Hip and Knee Joint Angles on Quadriceps Muscle-Tendon Unit Properties during Maximal Voluntary Isometric Contraction

Author

de Sousa, Alessandra Martins Melo, primary, Cavalcante, Jonathan Galvão Tenório, additional, Bottaro, Martim, additional, Vieira, Denis César Leite, additional, Babault, Nicolas, additional, Geremia, Jeam Marcel, additional, Corrigan, Patrick, additional, Silbernagel, Karin Grävare, additional, Durigan, João Luiz Quaglioti, additional, and Marqueti, Rita de Cássia, additional

Published
2023
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32. Targeting RNA:protein interactions with an integrative approach leads to the identification of potent YBX1 inhibitors

Author

El Hage, Krystel, primary, Babault, Nicolas, additional, Maciejak, Olek, additional, Desforges, Bénédicte, additional, Craveur, Pierrick, additional, Steiner, Emilie, additional, Rengifo-Gonzalez, Juan Carlos, additional, Henrie, Hélène, additional, Clement, Marie-Jeanne, additional, Joshi, Vandana, additional, Bouhss, Ahmed, additional, Wang, Liya, additional, Bauvais, Cyril, additional, and Pastré, David, additional

Published
2023
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39. Intra- and Inter-Rater Reliability and Agreement of Ultrasound Imaging of Muscle Architecture and Patellar Tendon in Post-COVID-19 Patients Who Had Experienced Moderate or Severe COVID-19 Infection

Author

de Jesus Ferreira, Leandro Gomes, primary, de Almeida Ventura, Álvaro, additional, da Silva Almeida, Isabella, additional, Mansur, Henrique, additional, Babault, Nicolas, additional, Durigan, João Luiz Quagliotti, additional, and de Cássia Marqueti, Rita, additional

Published
2022
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41. Author response: Targeting RNA:protein interactions with an integrative approach leads to the identification of potent YBX1 inhibitors

Author

El Hage, Krystel, primary, Babault, Nicolas, additional, Maciejak, Olek, additional, Desforges, Bénédicte, additional, Craveur, Pierrick, additional, Steiner, Emilie, additional, Rengifo-Gonzalez, Juan Carlos, additional, Henrie, Hélène, additional, Clement, Marie-Jeanne, additional, Joshi, Vandana, additional, Bouhss, Ahmed, additional, Wang, Liya, additional, Bauvais, Cyril, additional, and Pastré, David, additional

Published
2022
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43. Russian and Low-Frequency Currents Induced Similar Neuromuscular Adaptations in Soccer Players: A Randomized Controlled Trial.

Author

Guida Modesto, Karenina Arrais, Alves de Oliveira, Pedro Ferreira, Gonçalves Fonseca, Hellora, Porto Azevedo, Klaus, Guzzoni, Vinicius, Bottaro, Martim Francisco, Babault, Nicolas, and Quagliotti Durigan, Joao Luiz

Subjects
PHYSIOLOGICAL adaptation, ANALYSIS of variance, ANTHROPOMETRY, ELECTRIC stimulation, ELECTROMYOGRAPHY, EXERCISE, MUSCLE contraction, MUSCLE strength, MYALGIA, PHYSICAL therapy, RESEARCH funding, STATISTICAL sampling, SOCCER, STATISTICS, TORQUE, NEURODEVELOPMENTAL treatment, DATA analysis, RANDOMIZED controlled trials, VISUAL analog scale, TREATMENT effectiveness, BLIND experiment, TREATMENT duration, DATA analysis software, DESCRIPTIVE statistics, EVALUATION
Abstract

Context: Neuromuscular electrical stimulation (NMES) is widely used to induce muscular strength increase, however, no study has compared Russian current (RC) with Pulsed current (PC) effects after a training program. Objectives: We studied the effects of different neuromuscular electrical stimulation (NMES) currents, Russian current (RC) and Pulsed current (PC) on the neuromuscular system after a six-week training period. Design: Blinded randomized controlled trial. Setting: Laboratory. Patients: Twenty-seven male soccer players (22.2±2.2 years, 74.2±10.0 kg, 177±0 cm, BMI: 23.7±2.9 kg/cm for the control group, 22.1±3.1 years, 69.7±5.7 kg, 174±0 cm, 23.0±2.5 kg/cm for the PC group, and 23.0±3.4 years, 72.1±10.7 kg,175±0 cm, 23.5±3.4 kg/cm for the RC group) were randomized into three groups: 1) control group, 2) RC (2500 Hz, burst 100 Hz, phase duration 200 μs), and 3) PC (100 Hz and 200 μs). Intervention: The experimental groups trained for six weeks, with three sessions per week with NMES. Main outcome measures: Maximal voluntary isometric contraction (MVIC) and evoked torque, muscle architecture, sensory discomfort (VAS), and electromyographic activity (EMG) were evaluated before and after the six-week period. Results: Evoked torque increased in the RC (169.5±78.2 %, p<0.01) and PC groups (248.7±81.1 %, p<0.01). Muscle thickness and pennation angle increased in the RC (8.7±3.8 % and 16.7±9.0%, p<0.01) and PC groups (16.1±8.0 % and 27.4±11.0 %, p<0.01). The PC demonstrated lower values for VAS (38.8±17.1 %, p<0.01). There was no significant time difference for MVIC and RMS (root mean square) values (p>0.05). For all these variables, there was no difference between the RC and PC (p>0.05). Conclusion: Despite the widespread use of RC in clinical practice, RC and PC training programs produced similar neuromuscular adaptations in soccer players. Nonetheless, as PC generated less perceived discomfort it could be preferred after several training sessions. [ABSTRACT FROM AUTHOR]

Published
2020
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