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首页> 外文期刊>Journal of physical therapy science. >The Effect of Backpack Load on Muscle Activities of the Trunk and Lower Extremities and Plantar Foot Pressure in Flatfoot
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The Effect of Backpack Load on Muscle Activities of the Trunk and Lower Extremities and Plantar Foot Pressure in Flatfoot

机译：背包负荷对扁平足躯干和下肢肌肉活动以及足底压力的影响

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[Purpose] The purpose of this study was to investigate the changes in muscle activation of the trunk and lower extremities and plantar foot pressure due to backpack loads of 0, 10, 15, and 20% of body weight during level walking in individuals with flatfoot. [Methods] Fourteen young flatfoot subjects and 12 normal foot subjects participated in this study. In each session, the subjects were assigned to carry a backpack load, and there were four level walking modes: (1) unloaded walking (0%), (2) 10% body weight (BW) load, (3) 15% BW load, and (4) 20% BW load. Trunk and lower extremity muscle activities were recorded by surface EMG, and contact area and plantar foot pressure were determined using a RS scan system. [Results] The erector spinae, vastus medialis, tibialis anterior and gastrocnemius muscle activities, but not the rectus femoris and rectus abdominis muscle activities of flatfoot subjects significantly and progressively increased as load increased in flatfoot subjects. Contact area and pressure of the lateral and medial heel zones were significantly increased too. [Conclusion] Based on this data, the weight of a backpack could influence muscle activation and plantar foot pressure in flatfoot.
机译：[目的]本研究旨在调查扁平足患者在水平行走过程中，背包重量分别为体重的0、10、15和20％时，躯干和下肢的肌肉活化以及足底压力的变化。 。 [方法] 14名年轻扁平足受试者和12名正常足受试者参加了这项研究。在每个阶段中，受试者被分配承担背包负重，并且有四种水平的步行模式：（1）空载步行（0％），（2）10％体重（BW）负重，（3）15％BW负载，以及（4）20％BW负载。通过表面肌电图记录躯干和下肢的肌肉活动，并使用RS扫描系统确定接触面积和足底压。 [结果]扁平足受试者的直立脊柱，股内侧肌，胫前肌和腓肠肌活动，但扁平足受试者的股直肌和腹直肌活动并不显着并逐渐增加。外侧和内侧跟区的接触面积和压力也显着增加。 [结论]基于此数据，背包的重量可能会影响扁平足的肌肉激活和足底压力。

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