Characteristics of the vertical ground reaction force component prior to gait transition
Characteristics of the vertical ground reaction force component prior to gait transition
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DOI：
10.1080/02701367.2002.10609016
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发表时间：
2002-09-01
影响因子：
2.2
通讯作者：
Hamill, J
中科院分区：
文献类型：
--
作者：
Li, L;Hamill, J
本研究的目的是检查从步行到跑步或跑步到步行的角度接近步态过渡点时的垂直地面反作用力分量。在嵌入式测力板的电动跑步机上采集步行-跑步和跑步-步行步态转换前5步的垂直地面反作用力（VGRF）。过渡的VGRF的具体特点，观察到这两种类型的步态过渡。随着从跑步到步行的过渡，跑步峰值力和达到峰值力的时间以二次曲线的方式急剧减少。步行VGPF第一个峰值线性增加，第二个峰值在步行到跑步过渡之前二次下降。步行VGRF似乎比跑步VGRF对加速度更敏感。
The purpose of the study was to examine the vertical ground reaction force component when approaching the gait transition point from either a walk-to-run or run-to-walk perspective. The vertical ground reaction forces (VGRF) of five steps before gait transitions for both walk-to-run and run-to-walk were collected on a motor driven treadmill with embedded force plates. Transition specific characteristics of the VGRF were observed for both types of gait transition. Running peak force and time to peak force reduced dramatically in a quadratic fashion as approaching to the run-to-walk transition. The walking VGPF first peak increased linearly, and the second peak decreased quadratically prior to walk-to-run transition. Walking VGRF appearing to be more sensitive to acceleration than the running VGRF.