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Background The vector of aging and consequently the vector of lift in rhytidectomy has aided surgeons in improving movement of tissues during facial rejuvenation procedures. Objectives The goal was to analyze the vector of lift in patients undergoing primary and revisional facelift to achieve proper vectorial lifting. Methods Patients undergoing deep-plane facelift surgery were included for analysis. Intraoperative photographs and measurements were taken of the skin, superficial musculoaponeurotic system (SMAS), and platysmal suture suspension with mastoid crevasse inset. Measurements were compared between patients who were undergoing primary vs secondary surgery, site of lift, age, and gender. Results Seventy-one patients (90% female, mean age 57.8) with a total of 142 hemifaces were analyzed, 57 (73%) of which were primary and 14 (27%) secondary facelifts. The average vector of SMAS lifting was 70.8°. Females had a more vertical vector than males (71.3° vs 65.4°; P <.01). The average vectors of platysmal and skin lift were 87.0° and 58.2°, respectively. There was intrapatient difference between hemifaces. Despite there being more intersuture disparity in secondary cases than primary cases (16.9° vs 4.5°; P <.05), the mean vector of lifting was similar between them. Conclusions Proper release of the deep plane helps determine the appropriate vectors of lift, without relying on guidelines based on population averages. Each patient presents with a unique vector required to correct their descent. This technique provides an optimal result by directly suspending against the vectors of greatest descent. Level of Evidence: 3 [ABSTRACT FROM AUTHOR]

The purpose of this study was to gain a thorough understanding of the high school sport captaincy experience. Thirteen university freshmen (7 males, 6 females) who were high school sport captains the previous year participated in 60-90 min semistructured interviews. Hierarchical content analysis of the data revealed that the majority of participants believed that their captainship experience was positive, but also cited difficult aspects such as having responsibility/being held accountable, being scrutinized/meeting expectations, and staying neutral in conflict situations. The majority of captains also reported receiving little to no training from coaches for their captaincy role and indicated that they learned to lead largely from previous life experiences, such as by observing significant others and learning through trial and error. Results on perceived roles and duties, perceived effectiveness, attitudes toward formal leadership training, and recommendations for future captains are also provided. Implications for designing youth sport leadership development interventions and advancing research on youth leadership are discussed. [ABSTRACT FROM AUTHOR]

This article reviews the emerging concept of Contextual Intelligence (CI) and its relevance to sport psychology. Interviews with expert performance consultants suggest that CI is a key factor in successful consultations. Although CI has often been considered a tacit process learned indirectly through experience, systems theory and institutional research offer models for assessing organizations and developing contextual "maps." By having a framework and language for assessing context, sport psychologists can more effectively develop contextually intelligent and culturally appropriate interventions. The authors offer a framework for assessing context and developing contextual "maps." Specific guidelines and principles for designing contextually intelligent interventions are provided. [ABSTRACT FROM AUTHOR]

Examines the levels of hierarchical catastrophic drop in performance. Application of inductive and deductive analyses; Types of catastrophic performances; Explanation anxiety-performance relationship.

Children who are overweight and obese display lower physical activity levels than normal weight peers. Measures of weight status, perceived motor competence, and motor skill performance have been identified as potential correlates explaining this discrepancy. 1881 children (955 males; 926 females; 9.9 years) were assessed as part of the Physical Health Activity Study Team project. The age, habitual physical activity participation (PAP), body mass index (BMI), socioeconomic status (SES), motor performance (MP), and perceived athletic competence (PAC) of each child included were assessed. Gender-specific linear regression analyses (main effects model) were conducted to identify the percent variance in PAP explained by the following variables: BMI, MP, and PAC. For males, 18.3% of the variance in PAP was explained by BMI, MP, and PAC. PAC explained 17% of the variance, while MP, BMI, and SES only accounted for 0.6%, 0.7%, and 0.5%, respectively. PAC explained 17.5% of PAP variance in females; MP explained 0.8%. BMI, SES, and chronological age were not significant correlates of PAP in girls. An established repertoire of motor skill performance has been seen as a vehicle to PAP in children; however, this study indicates that PAC should not be overlooked in intervention strategies to promote increased PAP. [ABSTRACT FROM AUTHOR]

Background: The Vestibular/Ocular Motor Screening (VOMS) measure is a newly developed vestibular and ocular motor symptom provocation screening tool for sport-related concussions. Baseline data, psychometric properties, and reliability of the VOMS are needed to further understand the applications of this tool, especially in the youth population, where research is scarce. Purpose: To establish normative data and document the internal consistency and false-positive rate of the VOMS in a sample of nonconcussed youth athletes. Study Design: Cross-sectional study; Level of evidence, 3. Methods: A total of 423 youth athletes (male = 278, female = 145) between the ages of 8 and 14 years completed baseline VOMS screening before the start of their respective sport seasons. Internal consistency was measured with Cronbach α and inter-item correlations. Results: Approximately 60% of youth athletes reported no symptom provocation on baseline VOMS assessment, with 9% to 13% scoring over the cutoff levels (score of ≥2 for any individual VOMS symptom, near point convergence distance of ≥5 cm). The VOMS displayed a high internal consistency (Cronbach α = .97) at baseline among youth athletes. Conclusion: The current findings provide preliminary support for the implementation of VOMS baseline assessment into clinical practice, due to a high internal consistency, strong relationships between VOMS items, and a low false-positive rate at baseline in youth athletes. [ABSTRACT FROM AUTHOR]

Using a cross-sectional, mixed-method design, this study examined the frequency and psychosocial correlates of eating disorder (ED) symptomatology among male figure skaters (n = 29; Mage = 18.45 years) and explored their perspectives on skating-related weight pressures. One participant (3.7%) scored within range of a clinical ED. Body mass index, sport-related weight pressures, and sport-related body dissatisfaction explained 30% of variance in ED symptomatology; only weight pressures were significant. Although most endorsed the positive influences of skating, a perceived body–performance link was their most frequent weight pressure. Coping with sport-related weight pressures should be addressed in applied sport psychology and ED prevention. [ABSTRACT FROM AUTHOR]

BackgroundCOVID-19 is a rapidly developing threat to most people in the United States and abroad. The behaviors of the public are important to understand, as they may have a tremendous impact on the course of this novel coronavirus pandemic. ObjectiveThis study intends to assess the US population’s perception and knowledge of the virus as a threat and the behaviors of the general population in response. MethodsA prospective cross-sectional study was conducted with random volunteers recruited through Amazon Mechanical Turk, an internet crowdsourcing service, on March 24, 2020. ResultsA total of 969 participants met the inclusion criteria. It was found that the perceived severity of the COVID-19 pandemic significantly differed between age groups (P

Attachment, spreading, and organization of endothelial cells into tubule networks are mediated by interactions between cells in the extracellular microenvironment. Laminins are key extracellular matrix components and regulators of cell adhesion, migration, and proliferation. In this study, laminin-derived peptides were conjugated to poly(ethylene glycol) (PEG) monoacrylate and covalently incorporated into degradable PEG diacrylate (PEGDA) hydrogels to investigate the influence of these peptides on endothelial cellular adhesion and function in organizing into tubule networks. Degradable PEGDA hydrogels were synthesized by incorporating a matrix metalloproteinase (MMP)-sensitive peptide, GGGPQGIWGQGK (abbreviated PQ), into the polymer backbone. The secretion of MMP-2 and MMP-9 by endothelial cells promotes polymer degradation and consequently cell migration. We demonstrate the formation of extensive networks of tubule-like structures by encapsulated human umbilical vein endothelial cells in hydrogels with immobilized synthetic peptides. The resulting structures were stabilized by pericyte precursor cells (10T1/2s) in vitro. During tubule formation and stabilization, extracellular matrix proteins such as collagen IV and laminin were deposited. Tubules formed in the matrix of metalloproteinase sensitive hydrogels were visualized from 7 days to 4 weeks in response to different combination of peptides. Moreover, hydrogels functionalized with laminin peptides and transplanted in a mouse cornea supported the ingrowth and attachment of endothelial cells to the hydrogel during angiogenesis. Results of this study illustrate the use of laminin-derived peptides as potential candidates for modification of biomaterials to support angiogenesis.