Hopper D, Allison G, Fernandes N, O'Sullivan L, Wharton A
Curtin University of Technology, School of Physiotherapy, Shenton Park, Western Australia.
Clin Orthop Relat Res. 1998 May(350):159-65.
The aim of this study was to determine the reliability of peroneal latency between trials and to compare the right and left sides in healthy subjects. A dual platform trapdoor was constructed to tilt the right or the left ankle by 30 degrees in the frontal plane. Electromyography recorded the onset of peroneal activity in response to this perturbation, and an accelerometer detected the onset of trapdoor movement. Peroneal latency was determined algorithmically as the time difference between the onset of trapdoor movement and the onset of peroneal activity. Twenty trials were recorded from 31 right leg dominant, healthy subjects. Peroneal latency was measured successfully for 613 trials (99% success rate). A repeated measures analysis of variance showed a main effect for side with the right, dominant side recording a longer latency. Intertrial reliability of the peroneal latency was high (intraclass correlation coefficients for the right and left legs were .91 and .82, respectively). Thus, peroneal latency is a reliable measure of the polysynaptic reflex ares involved in the response of these muscles to a sudden inversion stress.
本研究的目的是确定试验间腓骨潜伏期的可靠性，并比较健康受试者左右两侧的情况。构建了一个双平台活板门，以使右踝或左踝在额状面内倾斜30度。肌电图记录了腓骨对这种扰动的活动起始，加速度计检测活板门运动的起始。通过算法确定腓骨潜伏期，即活板门运动起始与腓骨活动起始之间的时间差。从31名右利腿健康受试者中记录了20次试验。成功测量了613次试验的腓骨潜伏期（成功率99%）。重复测量方差分析显示，右侧（优势侧）的潜伏期较长，存在显著的侧别效应。腓骨潜伏期的试验间可靠性较高（右腿和左腿的组内相关系数分别为0.91和0.82）。因此，腓骨潜伏期是这些肌肉对突然内翻应力反应中涉及的多突触反射弧的可靠测量指标。
