摘要
目的 获得肌肉收缩力学特性与其电生理特性间的实验关系。方法 用肌电仪发出不同波宽、不同强度的脉冲电流 ,对家兔的胫神经进行刺激 ,记录其复合动作电位及收缩力。结果 得到了收缩力与各种肌电信号的实验关系曲线。结论 收缩力与刺激电流之间呈正相关关系、与复合动作电位幅值 (CAMP)之间呈线性关系 。
Objective To obtain an experimental relationship between mechanical property and electrical property of an contracting muscle. Methods The tibial nerve of rabbits was stimulated by impulse current with different pulse width and different current intensity giving by electromyography, meanwhile the Conductive Amplitude of Motion Potential (CAMP) of the gastrocnemius and it's contractile force were recorded. Results Experimental curver of contractile force vs electromyographic signals were obtained.Conclusion The contractile force was positively correlative with the impulse current intensity, and had linear relationship with the Conductive Amplitude of Motion Potential (CAMP) as well as with the value of electromyographic integral.
出处
《医用生物力学》
EI
CAS
CSCD
2003年第4期213-217,共5页
Journal of Medical Biomechanics
基金
国家自然科学基金 (19972 0 4 5 )
西省自然科学基金 (9810 0 5 )
关键词
腓肠肌
电刺激
肌电仪
肌肉收缩力
Gastrocnemius
Electrical stimulation
Electromyography
Contractile force
