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Youths Are Less Susceptible to Exercise-Induced Muscle Damage Than Adults: A Systematic Review With Meta-Analysis

Fernandes, JFT, Hayes, LD, Dingley, AF, Moeskops, S, Oliver, JL, Arede, J, Twist, C and Wilson, LJ (2023) Youths Are Less Susceptible to Exercise-Induced Muscle Damage Than Adults: A Systematic Review With Meta-Analysis. Pediatric Exercise Science. pp. 1-12. ISSN 0899-8493

Fernandes et al. Youths Are Less Susceptible to Exercise-Induced Muscle Damage Than Adults - A Systematic Review With Meta-Analysis.pdf - Accepted Version

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This meta-analysis aimed to (1) provide a comparison of peak changes in indirect markers of exercise-induced muscle damage (EIMD) in youths versus adults and (2) determine if the involved limb moderated this effect. Studies were eligible for inclusion if they (1) provided a human youth versus adult comparison; (2) provided data on muscle strength, soreness, or creatine kinase markers beyond ≥24 hours; and (3) did not provide a recovery treatment. Effect sizes (ES) were presented alongside 95% confidence intervals. EIMD exhibited larger effects on adults than in youths for muscle strength (ES = -2.01; P < .001), muscle soreness (ES = -1.52; P < .001), and creatine kinase (ES = -1.98; P < .001). The random effects meta-regression indicated that the effects of upper- and lower-limb exercise in youths and adults were significant for muscle soreness (coefficient estimate = 1.11; P < .001) but not for muscle strength or creatine kinase (P > .05). As such, the between-group effects for muscle soreness (ES = -2.10 vs -1.03; P < .05) were greater in the upper than lower limbs. The magnitude of EIMD in youths is substantially less than in their adult counterparts, and this effect is greater in upper than lower limbs for muscle soreness. These findings help guide practitioners who may be concerned about the potential impact of EIMD when training youth athletes.

Item Type: Article
Additional Information: Accepted author manuscript version reprinted, by permission, from Pediatric Exercise Science, 2024, https://doi.org/10.1123/pes.2023-0108. © Human Kinetics, Inc.
Uncontrolled Keywords: creatine kinase; eccentric exercise; muscle strength; soreness; 1106 Human Movement and Sports Sciences; 1114 Paediatrics and Reproductive Medicine; 1302 Curriculum and Pedagogy; Sport Sciences
Subjects: R Medicine > RC Internal medicine > RC1200 Sports Medicine
Divisions: Sport & Exercise Sciences
Publisher: Human Kinetics
SWORD Depositor: A Symplectic
Date Deposited: 18 Jun 2024 07:51
Last Modified: 18 Jun 2024 08:00
DOI or ID number: 10.1123/pes.2023-0108
URI: https://researchonline.ljmu.ac.uk/id/eprint/23485
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