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Chiharu Iwasaka, Tsubasa Mitsutake and Etsuo Horikawa

reported that gait speed is significantly related to muscle strength rather than muscle mass ( Barbat-Artigas, Pinheiro Carvalho, Rolland, Vellas, & Aubertin-Leheudre, 2016 ). However, what has been studied in the past is the relationship between physical performance and the total amount of skeletal muscle

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Caroline Lisee, Tom Birchmeier, Arthur Yan, Brent Geers, Kaitlin O’Hagan, Callum Davis and Christopher Kuenze

the relationship between audio characteristics and vGRFs remains consistent across other tasks that have been implicated in ACL injury risk such as single-leg landing. 17 , 18 Single-leg landings have been identified as a common mechanism of ACL injury, 19 but many prospective injury prevention

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Chris Wagstaff, Rebecca Hings, Rebecca Larner and David Fletcher

was related to dimensions of burnout. The second aim was to establish whether psychological-resilience qualities moderated the relationship between the frequency of organizational stressors and burnout. Much of the extant research on organizational stress in sport has been conceptually aligned with

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Melissa DiFabio, Lindsay V. Slater, Grant Norte, John Goetschius, Joseph M. Hart and Jay Hertel

-014-3261-5 10.1007/s00167-014-3261-5 25178537 24. Petschnig R , Baron R , Albrecht M . The relationship between isokinetic quadriceps strength test and hop tests for distance and one-legged vertical jump test following anterior cruciate ligament reconstruction . J Orthop Sports Phys Ther . 1998 ; 28

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Richard Larouche, Emily F. Mire, Kevin Belanger, Tiago V. Barreira, Jean-Philippe Chaput, Mikael Fogelholm, Gang Hu, Estelle V. Lambert, Carol Maher, José Maia, Tim Olds, Vincent Onywera, Olga L. Sarmiento, Martyn Standage, Catrine Tudor-Locke, Peter T. Katzmarzyk, Mark S. Tremblay and For the ISCOLE Research Group

relationship problems ( 26 ). Furthermore, exposure to natural environments could augment the benefits of PA for mental health ( 36 ). However, previous studies examining the relationship between outdoor time and adiposity have obtained conflicting findings ( 1 , 9 , 26 , 35 , 38 ). To our knowledge, all

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Arne Jaspers, Tim Op De Beéck, Michel S. Brink, Wouter G.P. Frencken, Filip Staes, Jesse J. Davis and Werner F. Helsen

fitness), similar external loads can result in different internal loads for players. Insights into the relationship between the external and internal load can improve load management and help to optimize physical fitness and support injury prevention. 5 To date, several studies about team sports have

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Richelle M. Williams, R. Curtis Bay and Tamara C. Valovich McLeod

relationship between symptomatology and days postconcussion. Methods Participants Data from a convenience sample of 437 adolescent athletes from Arizona with a medically-diagnosed concussion (326 males, 111 females; age 16.0 ± 1.2; grade level = 10.1 ± 1.0) were reviewed. Participants were interscholastic

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Lee-Ann Sharp and Ken Hodge

The purpose of this study was to investigate the components necessary for the development of an effective applied sport psychology consulting relationship between a sport psychology consultant (SPC) and a coach. To address this purpose, two SPC-Coach consulting relationship case studies will be presented. Following purposeful sampling methods, members of two SPC-Coach consulting relationships (2 SPCs and 2 elite coaches) participated in individual interviews to discuss their perceptions of effective consulting relationships. Inductive \content analysis was conducted to search for common themes both within and across the two case studies (Weber, 1990). Three categories emerged with shared similarities between both case study relationships as important to the development of effective consulting relationships between SPCs and coaches; (a) SPC knowledge; (b) trust; and (c) friendship. In addition, two categories individual to each of the case study consulting relationships emerged; (d) SPC fitting in with team culture; and (e) flexibility.

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Daniel Arvidsson, Elias Johannesson, Lars Bo Andersen, Magnus Karlsson, Per Wollmer, Ola Thorsson and Magnus Dencker

physical activity and body fat, and their relationship. Childhood is a period in life characterized by rapid development of the neural system supported by a physically active lifestyle. Few studies have investigated the relationship of physical activity with the expression of NGF and BDNF in children

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K. Andrew R. Richards, Wesley J. Wilson, Steven K. Holland and Justin A. Haegele

work with physical educators who are unsupportive and may unknowingly employ exclusionary teaching practices ( Haegele & Zhu, 2017 ). Thus, the purpose of this study was to extend the research on the socialization of PE teachers by examining the relationships among perceived organizational support (POS