Effects of a modified backpack model on ground reaction forces in children of different ages during walking and running
1Department of Sport Sciences, University of Beira Interior, 6201-001 Covilhã, Portugal
2Health Sciences and Human Development, Research Center in Sport Sciences, 6201-001 Covilhã, Portugal
33Department of Sports, Douro Higher Institute of Educational Sciences, 4560-481 Penafiel, Portugal
4Department of Sports, Instituto Politécnico de Bragança, 5300-253 Bragança, Portugal
5Navarrabiomed, Hospital Universitario de Navarra (HUN), Universidad Pública de Navarra (UPNA), 31006 Pamplona, Spain
DOI: 10.31083/j.jomh1805109 Vol.18,Issue 5,May 2022 pp.1-9
Submitted: 10 September 2021 Accepted: 17 November 2022
Published: 31 May 2022
Background: Backpacks are widely used by children to carry different objects and the literature supports that most backpacks contain excessive weight. To minimize the loading effects (i.e., ground reaction force), modified backpacks have been tested. However, the effects of elastics on shoulders straps are yet to be studied. Thus, the aim of this study was to test and compare the effect on the vertical ground reaction force of a standard backpack with a modified one with elastic straps while walking and running. Methods: 9 children (5 boys and 4 girls) were included in the group G-5 (age: 11.0
backpacks; modified straps; ground reaction forces; locomotion
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