Department of Didactics of Musical, Plastic and Body Expression, Faculty of Education and Sport Sciences, University of Granada, Melilla, Spain; Human Behavior and Motion Analysis Lab (Hubema Lab), University of Granada, Ceuta, Spain.
Human Behavior and Motion Analysis Lab (Hubema Lab), University of Granada, Ceuta, Spain; Department of Physical Education and Sports, Faculty of Education, Economy and Technology, University of Granada, Ceuta, Spain.
Appl Ergon. 2021 Jan;90:103236. doi: 10.1016/j.apergo.2020.103236. Epub 2020 Aug 24.
Discrepancies exist in backpack load recommendations for obese/overweight children, and the recommendations do not consider school trolleys. This study analysed obese/overweight and healthy-weight students' perceived load and fatigue when carrying schoolbags and their gait kinematics and rate of perceived exertion (RPE) when carrying backpacks or pulling school trolleys with different loads. Twelve obese/overweight and 36 healthy-weight students were asked about their perceived load and fatigue in carrying their schoolbags to school. Then, a kinematic gait analysis was completed in students walking unloaded or transporting 10%, 15% or 20% of their bodyweight (BW) in a backpack or trolley. RPE was recorded after each condition. The average hip rotation and knee adduction angles differed between body mass index (BMI) groups. The healthy-weight group reported higher RPEs than the overweight/obese group when pulling a trolley with 10-15% BW. In conclusion, both BMI groups responded similarly to load and schoolbag type.
对于肥胖/超重儿童的背包负荷推荐存在差异，且这些推荐并未考虑到学校推车。本研究分析了肥胖/超重和健康体重的学生在携带书包时的感知负荷和疲劳程度，以及他们在携带不同负荷的背包或推车时的步态运动学和感知用力程度（RPE）。研究要求 12 名肥胖/超重学生和 36 名健康体重学生携带书包上学时报告他们的感知负荷和疲劳程度。然后，在学生空载或携带 10%、15%或 20%体重（BW）的背包或推车时，完成了运动学步态分析。在每种情况下都记录了 RPE。平均髋关节旋转角度和膝关节内收角度在体重指数（BMI）组之间存在差异。当用 10-15% BW 的推车拉车时，健康体重组的 RPE 高于超重/肥胖组。总之，两个 BMI 组对负荷和书包类型的反应相似。
