【摘要】：目的探討 1 0 0Hz正弦波振動對尾部懸吊大鼠比目魚肌肌梭傳入放電的影響。方法采用尾部懸吊大鼠模型模擬失重 ,用振動儀實施 1 0 0Hz正弦波刺激 ,利用從背根分離神經(jīng)細(xì)束并記錄比目魚肌肌梭傳入放電的方法 ,7d后觀察大鼠比目魚肌肌梭傳入放電的變化。結(jié)果 1 )吊尾 7d后 ,大鼠比目魚肌肌梭的傳入放電與對照組相比明顯減低 (P 0 .0 5 )。 2 )吊尾加 1 0 0Hz正弦波振動 7d后 ,與單純吊尾組相比肌梭的傳入放電明顯增多 (P 0 .0 5 )。結(jié)論 1 0 0Hz正弦波振動可選擇性興奮肌梭 ,使懸吊大鼠比目魚肌肌梭的傳入放電明顯增多
[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.
【作者單位】： 西安交通大學(xué)醫(yī)學(xué)院生理學(xué)教研室 西安交通大學(xué)醫(yī)學(xué)院生理學(xué)教研室 西安交通大學(xué)醫(yī)學(xué)院生理學(xué)教研室 西安交通大學(xué)醫(yī)學(xué)院生理學(xué)教研室
【基金】：國家自然科學(xué)基金資助 ( 3 90 70 3 3 4)
【分類號】：R852.22
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本文編號：2450485