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100Hz正弦波振动对悬吊大鼠比目鱼肌肌梭传入放电的影响

发布时间:2019-03-30 21:06
【摘要】:目的探讨 1 0 0Hz正弦波振动对尾部悬吊大鼠比目鱼肌肌梭传入放电的影响。方法采用尾部悬吊大鼠模型模拟失重 ,用振动仪实施 1 0 0Hz正弦波刺激 ,利用从背根分离神经细束并记录比目鱼肌肌梭传入放电的方法 ,7d后观察大鼠比目鱼肌肌梭传入放电的变化。结果 1 )吊尾 7d后 ,大鼠比目鱼肌肌梭的传入放电与对照组相比明显减低 (P 0 .0 5 )。 2 )吊尾加 1 0 0Hz正弦波振动 7d后 ,与单纯吊尾组相比肌梭的传入放电明显增多 (P 0 .0 5 )。结论 1 0 0Hz正弦波振动可选择性兴奋肌梭 ,使悬吊大鼠比目鱼肌肌梭的传入放电明显增多
[Abstract]:Aim to investigate the effect of 10 0Hz sine wave vibration on the afferent discharge of soleus muscle spindle in tail suspended rats. Methods the tail suspension rat model was used to simulate weightlessness. 10 0Hz sine wave stimulation was performed by vibrator. The fine nerve bundle was separated from the dorsal root and the afferent discharge of soleus muscle spindle was recorded. The changes of afferent discharge of soleus muscle spindle in rats were observed 7 days later. Results 1) after 7 days of tail suspension, the afferent discharge of soleus spindles in rats was significantly lower than that in the control group (P 0.05). 2) the afferent discharge of muscle spindle increased significantly after 7 days of tail suspension plus 10 0Hz sine wave vibration (P 0.05). Conclusion 10 0Hz sine wave vibration can selectively excite the muscle spindle and increase the afferent discharge of soleus muscle spindle in suspended rats.
【作者单位】: 西安交通大学医学院生理学教研室 西安交通大学医学院生理学教研室 西安交通大学医学院生理学教研室 西安交通大学医学院生理学教研室
【基金】:国家自然科学基金资助 ( 3 90 70 3 3 4)
【分类号】:R852.22


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