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首页> 外文期刊>Journal of Rehabilitation Research and Development >Electromyographic and kinematic nondisabled gait differences at extremely slow overground and treadmill walking speeds
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Electromyographic and kinematic nondisabled gait differences at extremely slow overground and treadmill walking speeds

机译：极慢的地面和跑步机行走速度下的肌电和运动学非残障步态差异

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This study compared the kinematic and electromyographic (EMG) gait patterns of ablebodied adults at natural speed in contrast to extremely slow overground and treadmill walking speeds. Kinematic and EMG data were collected at three speeds (selfselected, 0.30 m/s, and 0.20 m/s). Eighteen subjects were evaluated for trunk and lowerlimb motion and EMG of five lowerlimb muscles. Significant reductions were found in segmental motion between natural speed and both slower gait speeds, accompanied by an expected reduction in cadence and stride. EMG patterns at slower speeds showed changes in timing and reduced magnitudes. Phasic timing of the proximal muscles showed the most changes with predominant coactivation, whereas the distal muscles remained consistent with the pattern at natural selfselected speed. Overground versus treadmill gait patterns revealed minimal differences. Consideration of the effects of slower walking speed may help clinicians create interventions to target primary gait deficits on overground or treadmill walking.
机译：这项研究比较了健壮的成年人在自然速度下的运动和肌电（EMG）步态模式，而在地面和跑步机上行走的速度极慢。运动和EMG数据以三种速度（自行选择，0.30 m / s和0.20 m / s）收集。对18名受试者的躯干和下肢运动以及5条下肢肌肉的肌电图进行了评估。发现自然速度和较慢的步态速度之间的节段运动显着降低，同时预期的节奏和步幅也将降低。肌电图模式在较慢的速度下显示出时间变化和幅度减小。近端肌肉的阶段性时序表现出主要的共激活变化最多，而远端肌肉在自然自选速度下保持与模式一致。地面与跑步机的步态模式显示出最小的差异。考虑慢速行走的影响可能有助于临床医生针对地面或跑步机行走的主要步态缺陷进行干预。

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