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Soleus H-reflex modulation pattern for a fine angle of hip and knee joint passive movement
Shigeo Tanabe1, Yoshihiro Muraoka, Akio Kamiya
1Graduate School of Science and Technology, Keio University, Shizuoka, Japan. tanabe@bme.bio.keio.ac.jp
Objective:
To elucidate whether hip and knee joint movement modulate soleus H-reflex, the authors measured the soleus H-reflex for a very fine angle during movement.
Methods:
Eight healthy subjects participated. The knee and hip joints were passively flexed and extended ranging from 0 degrees to 120 degrees simultaneously.
Results:
In the flexion phase, H-reflex decreased. It decreased more during fast movement. In the extension phase, H-reflex increased markedly.
Conclusion:
By measuring for a fine angle, it was clearly found that the stretch of the muscles around the knee and hip joints caused the changes in soleus H-reflex.
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