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. 2016 May 9;7:164. doi: 10.3389/fphys.2016.00164

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Copyright © 2016 Granacher, Lesinski, Büsch, Muehlbauer, Prieske, Puta, Gollhofer and Behm.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Effects of resistance training on measures of muscular strength (children: n = 3 studies; adolescents: n = 13 studies), muscular power (children: n = 10 studies; adolescents: n = 22 studies), muscular endurance (adolescents: n = 2 studies), and athletic performance (children: n = 6 studies; adolescents: n = 13 studies) in youth athletes depending on chronological age. Of note, only studies with an active control group were included if they investigated the effects of resistance training in youth athletes (6–18 years) and tested at least one measure of muscular fitness and athletic performance. Legend: p = p-value refers to the respective subgroup analysis; SMD = standard mean difference (effect size). Modified from Lesinski et al. (2016).