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Emma L. J. Eyre, Jason Tallis, Susie Wilson, Lee Wilde, Liam Akhurst, Rildo Wanderleys and Michael J. Duncan

. For these reasons, recent focus has been placed on the validity of estimating activity intensities in children ( Chinapaw et al., 2010 ; De Vries et al., 2009 ; Lubans et al., 2011 ), older adults ( Garatachea et al., 2010 ), and, to a lesser extent, young adults ( Watson et al., 2014 ). Young

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Jacqueline Phillips, Kelly Cheever, Jamie McKeon and Ryan Tierney

of nose) for testing could influence NPC scores in a healthy, physically active, young adult population. Methods Participants Twenty subjects, who signed consent forms approved by the institutional review board of Temple University, were recruited to participate in the study (males = 13, females = 7

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Danielle L. Gyemi, Charles Kahelin, Nicole C. George and David M. Andrews

segmenting DXA scans using custom regions of interest is a reliable method for estimating tissue masses of the upper and lower extremities in young adults 12 ; good within-analyst reliability has also been established for the tissue masses of the core body segments. 13 However, the feasibility of

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Yusuf Köklü, Utku Alemdaroğlu, Hamit Cihan and Del P. Wong

versus 2, 3 versus 3, and 4 versus 4 SSGs for elite young soccer players, whereas Abrantes et al 7 used a 4-minute bout duration in 3 versus 3 and 4 versus 4 SSGs for elite young soccer players. Meanwhile, Aguiar et al 21 operated a 6-minute bout duration in 2 versus 2, 3 versus 3, 4 versus 4, and 5

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Ronit Aviram, Netta Harries, Anat Shkedy Rabani, Akram Amro, Ibtisam Nammourah, Muhammed Al-Jarrah, Yoav Raanan, Yeshayahu Hutzler and Simona Bar-Haim

, 24 ). Adults with cerebral palsy (CP) are a growing population and are at increased risk for chronic diseases ( 27 ). Ambulatory adolescents and young adults with CP are also habitually less active than their TD peers and less likely to meet physical activity guidelines ( 3 ) and are therefore at

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Morgan Potter, John C. Spence, Normand Boulé, Jodie A. Stearns and Valerie Carson

. Understanding the longitudinal relationship between PA, ST, and fitness of younger children will help determine the critical age to intervene to improve the fitness of children. In addition, longitudinal evidence can also provide insight on behavioral tracking. If PA and ST patterns in young children are

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Amanda Santos, Sandra Silva-Santos, Michael Duncan, Maria João Lagoa, Susana Vale and Jorge Mota

young schoolchildren (6–9 y). Methods Participants This is a school-based longitudinal study. The data were collected in 2 schools in the metropolitan area of Porto, in the North of Portugal, and the sample was part of the Preschool Physical Activity, Body Composition and Lifestyle Study. For the

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Xiangli Gu, Senlin Chen and Xiaoxia Zhang

inadequate understandings or misconceptions about fitness and physical activity ( Brusseau, Kulinna, & Cothran, 2011 ; Chen & Nam, 2017 ; Keating et al., 2009 ; Pasco & Ennis, 2015 ; Sun, Chen, Zhu, & Ennis, 2012 ). Furthermore, we were unable to locate published research that has examined young children

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Melanna F. Cox, Greg J. Petrucci Jr., Robert T. Marcotte, Brittany R. Masteller, John Staudenmayer, Patty S. Freedson and John R. Sirard

analyses were conducted with data collected from a pilot study in young children. This initial agreement analyses were completed in younger children because the intermittent nature of child free-play activity ( Bailey et al., 1995 ) provided variability in movements and a challenging set of training videos

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Adam D.G. Baxter-Jones and Peter J. Helms

This paper reviews the findings from a longitudinal study following the growth and development of young British athletes. Four sports were studied: gymnastics, soccer, swimming, and tennis. Four main areas of concern were identified and studied: sports injury, growth and development, psychological and psychosocial problems, and physiological functioning. No evidence was found to suggest that training affected growth or sexual development. The incidence and severity of injuries was low. Athletes were shown to have a healthy lifestyle. The negative effects of intensive training at a young age were outweighed by the many social, psychological and health benefits that a serious commitment to sport brought these young people.