Differences in walking and running parameters in elementary school students with and without backpacks.

Work Pub Date : 2024-05-15 DOI:10.3233/WOR-240111
Yasuaki Kusumoto, Eri Takahashi, Yasuhiro Endo, Akihiko Asao, Yoshinobu Tanaka, Kanako Okazaki, Mieko Yokozuka, Junichi Omata, Shoji Yabuki, Hideto Kanzaki
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Abstract

BACKGROUND Backpack syndrome (BS) is a term used to describe symptoms such as shoulder and back pain that are believed to be caused by carrying a backpack. Few studies have investigated the changes in walking and running parameters with and without backpacks. OBJECTIVE The present study aimed to investigate the differences in walking and running parameters with and without backpacks in primary school children with and without BS. METHODS This cross-sectional study included 51 children (average age 9.3 years, 6- 12 years). Two questions were asked beforehand: whether the respondents had shoulder or back pain when going to school and present; those who answered that they had pain in both cases were defined as the BS group, while the others were the control group. Walking and running at comfortable speeds and walking and running with a 6 kg backpack on their backs were measured. RESULTS During walking, there were main effects for speed, cadence, and strike angle with and without the backpack, but no interactions were identified for any of the parameters. In running, however, there were main effects for speed, stride length, strike angle, and lift-off angle, and an interaction effect was observed for speed and stride length. CONCLUSIONS During walking, carrying a 6 kg backpack increased cadence and walking speed. During running, carrying a backpack caused a decrease in stride length and running speed in the BS group, whereas there was no change in the control group, suggesting that the control and BS groups may respond differently.
背书包和不背书包小学生的步行和跑步参数差异。
背景背包综合征(BS)是用来描述肩部和背部疼痛等症状的术语,据信这些症状是由背包引起的。本研究旨在调查有背包综合症和没有背包综合症的小学生在有背包和没有背包的情况下行走和跑步参数的差异。方法:本横断面研究包括 51 名儿童(平均年龄 9.3 岁,6-12 岁)。研究人员事先询问了两个问题:被调查者在上学和放学时是否感到肩部或背部疼痛;回答这两种情况都感到疼痛的被调查者被定义为 BS 组,其他被调查者为对照组。结果在步行过程中,背上和不背上背包时的速度、步频和击球角度存在主效应,但没有发现任何参数存在交互作用。但在跑步时,速度、步长、击球角和腾空角存在主效应,速度和步长存在交互效应。跑步时,背负背包会导致 BS 组的步长和跑步速度下降,而对照组则没有变化,这表明对照组和 BS 组的反应可能不同。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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