足底振动刺激诱发人体特定方向姿势调整的测试系统研究

doi:10.3969/j.issn.1006-9771.2021.09.018

Abstract

Abstract:

Objective To construct a testing system for the effects of plantar surface vibration stimulation on the human postural adjustments, and to explore its practicability.Methods The mechanical device and control system providing vibration stimulation were designed and built. Twenty-five healthy teachers and students (aged 19~29 years) were recruited from our college to participate in the experimental study from 2nd to 6th, October, 2019. The amplitudes of postural response were compared following non-stimulation and stimulation at left forefoot, left heel, right forefoot, right heel, left foot, right foot, double forefoot, double heels of each subject at the 20 Hz, 40 Hz, 60 Hz and 80 Hz vibrations, respectively.Results The amplitude of the center of pressure response under foot cutaneous stimulation increased compared with the response amplitude under non-vibration conditions (P < 0.05).Conclusion The locations of vibration as well as different vibration parameters (such as frequency, amplitude) could be adjusted, and the information of postural response to vibratory stimulation of the plantar surface, especially the excursion of center of pressure could be collected in the system which can be applied in the experimental study on the human posture control.

Key words: plantar vibration, center of pressure, postural response, testing system

LI Gao-feng,MEI Jian-feng,ZHANG Meng,CAI Hong-bo,CAO Ping,LI Chen-na,ZHANG Xiao-jun. Testing System for Analyzing Directionally-specific Postural Adjustments Indued by Plantar Vibratory Stimulation[J]. 《Chinese Journal of Rehabilitation Theory and Practice》, 2021, 27(9): 1110-1116.

Figures/Tables 5

References 29

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状态	左足前部	左足后部	右足前部	右足后部	双足前部	双足后部	左全足	右全足
不振	31.634±10.447	33.754±12.777	-31.351±8.804	-34.744±10.091	1.111±5.841	1.216±6.358	35.306±11.468	-34.625±8.865
20 Hz振动	41.938±10.19	38.979±6.974	-43.102±12.099	-36.473±12.197	-0.580±8.269	0.328±7.161	44.934±13.311	-44.838±10.463
40 Hz振动	41.471±9.97	34.776±7.016	-44.038±12.556	-36.995±13.182	0.243±9.578	0.015±7.92	52.982±14.209	-47.688±10.574
60 Hz振动	45.987±13.89	34.093±8.816	-47.480±15.79	-40.106±14.534	0.549±10.222	0.808±9.125	55.893±12.338	-47.510±11.027
80 Hz振动	43.793±12.07	36.348±7.979	-45.388±13.415	-37.260±13.523	-0.215±9.109	-0.130±8.078	46.964±13.381	-44.852±10.843
F值	64.609	63.246	56.804	53.138	0.136	0.124	60.233	77.463
P值	< 0.001	< 0.001	< 0.001	< 0.001	0.969	0.973	< 0.001	< 0.001

状态	左足前部	左足后部	右足前部	右足后部	双足前部	双足后部	左全足	右全足
不振	-26.522±10.016	38.059±6.965	-27.082±8.958	39.502±7.378	-27.258±8.473	35.075±3.988	6.758±17.687	8.418±13.664
20 Hz振动	-58.006±6.797	81.182±6.704	-57.184±3.625	79.569±7.989	-59.380±6.384	81.569±9.685	-2.212±16.993	3.485±13.023
40 Hz振动	-59.510±5.199	83.831±12.370	-61.648±6.124	82.655±2.726	-60.673±6.227	82.989±16.050	-6.305±15.499	-0.309±14.055
60 Hz振动	-63.789±6.194	86.750±7.519	-57.944±8.167	91.797±9.116	-62.872±6.605	94.026±13.738	-6.738±17.989	-10.622±9.917
80 Hz振动	-63.130±5.678	83.932±7.648	-64.351±7.608	83.425±9.431	-63.663±8.627	89.476±14.317	-2.062±15.149	-2.408±11.591
F值	5.415	5.96	2.989	11.689	5.403	3.802	0.738	2.239
P值	0.020	0.010	0.034	< 0.001	0.020	0.013	0.573	0.088

Testing System for Analyzing Directionally-specific Postural Adjustments Indued by Plantar Vibratory Stimulation

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