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Mandy Frake

This study examines the significance of the development of relationships in team sports as a factor contributing to female sustained participation in sport. Ten open-ended interviews were conducted with female varsity athletes. The results demonstrate that for women to sustain participation in sports, an environment in which relationships may be developed must be provided. Using Thayer-Bacon’s (2000) ‘relational epistemology’ I unpack this research and the significance of relationships in sport as being critical to sustaining participation. Relationships may be understood in various categories; supporting, motivating, and bonding. There are a number of questions presented that may lead to further research, specifically in regard to what physical educators and coaches may implement in an educational, athletic, or practice setting to enhance females’ positive experiences in a group setting.

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Emily R. Hunt, Cassandra N. Parise and Timothy A. Butterfield

Clinical Question What are the effects of nonoperative treatment on isokinetic muscle strength, the single-leg hop test, and the iKDC-2000 in patients who have sustained an ACL rupture? Search Strategy In November 2018, we performed a comprehensive computerized search using the following terms (Figure  1

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Charles Goulet and Isabelle Rogowski

30/1. This ranking corresponds to International Tennis Number 8, indicating players who are able to judge where the ball is going and can sustain a short rally of slow pace (2004, ). Players and parents gave their written informed consent

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Trent Stellingwerff

composition periodization coupled with performance and health outcomes. The overriding ethos was that it is not sustainable from a health and performance perspective to be at peak body composition year-round, so body composition needs to be strategically periodized. Although correlative in nature, this case

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Anna E. Chalkley, Ash C. Routen, Jo P. Harris, Lorraine A. Cale, Trish Gorely and Lauren B. Sherar

strategic approach to the growth and development of MK within the United Kingdom with specific attention being given to how schools can effectively implement the program to ensure sustained participation. Methods As part of a broader study ( Chalkley et al., 2018 ) on the implementation of MK, the data for

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Assuman Nuhu and Matthew Kutz

Epidemiological research on soccer injuries during African soccer competition is sparse. This study was conducted among 12 teams in the Council of East and Central Africa Football Association (CECAFA) challenge cup tournament. Fifty-seven injuries were reported (2.7 injuries per match), or 82.25 injuries per 1,000 match hours. The ankle was most often injured (23%). The majority (81%) of injuries occurred as a result of traumatic contact, with the most injuries occurring in the last 30 min of the match. A majority (84%) of athletes who sustained injuries continued to play. African medical personnel should be trained to handle the unique constraints and variety of injuries sustained during soccer competition.

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Wayne Brown and Matt Greig

The epidemiology and etiology of ankle sprain injuries in soccer have been well described. Retrospective analysis of epidemiological data identified an English Premier League player sustaining a high lateral ankle sprain. GPS data collated during the training session in which the injury was sustained, and subsequent rehabilitation sessions, were analyzed to quantify uniaxial PlayerLoad metrics. The injured player revealed a 3:1 asymmetrical loading pattern in the mediolateral plane and multiaxial high loading events which might present the inciting event to injury. The high magnitude, asymmetrical and multiplanar loading is consistent with lateral ankle sprain etiology.

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Blandine Bril

Skills From this rapid overview of what can be viewed as the cultural mark of motor behavior, several ideas emerge: skilled behavior in humans is sustained by an enormous capacity of adaptation to environmental constraints, culture being one multifaceted constraint that overlaps with others. Cultural

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Rebecca Jane Willcocks, Jon Fulford, Alan Robert Barker, Neil Armstrong and Craig Anthony Williams

The phosphocreatine (PCr) recovery time constant (τ) following exercise provides a measure of mitochondrial oxidative capacity. The purpose of this investigation was to use 2 different protocols to determine τ in adolescent females. 31P-MR spectra were collected during 2 exercise tests in 6 adolescent girls (13.8 ± 0.3 y) and 7 women (23.2 ± 3.4 y). The first test consisted of 23 repeated 4 seconds maximal isometric calf contractions separated by 12-second recovery; PCr recovery between the final 18 contractions was used to calculate τ. The second test was a sustained 20-second maximal contraction; recovery was fitted with an exponential function to measure τ. PCr τ did not significantly differ between groups: (gated exercise: 4 girls: 16 ± 5 s, 7 women: 17 ± 5 s, p; sustained exercise: 6 girls: 19 ± 6 s, 7 women: 19 ± 4 s). Bland-Altman analysis demonstrated a close agreement between sustained and gated exercise. Both gated and sustained exercise appear feasible in a pediatric population, and offer a noninvasive evaluation of mitochondrial oxidative capacity.

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Christopher M. Bouvette, Gerard A. Malanga, William P. Cooney, Michael J. Stuart and Richard W. Miller

Athletes who sustain metacarpal injuries such as nondisplaced and minimally displaced fractures or metacarpophalangeal dislocation have benefited from the use of a newly developed Plastizote hand/wrist orthotic device. This orthosis allows appropriate immobilization as well as early, safe, and effective return to contact sports during the healing process. Three case reports are presented along with applications and methods for fabricating this lightweight splint.