Soleus H-reflex modulation pattern for a fine angle of hip and knee joint passive movement.
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.


CONCLUSIONS
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.
Tanabe
Shigeo
S
Graduate School of Science and Technology, Keio University, Shizuoka, Japan. tanabe@bme.bio.keio.ac.jp
Muraoka
Yoshihiro
Y
Kamiya
Akio
A
Tomita
Yutaka
Y
Masakado
Yoshihisa
Y
D000328:Adult; D001696:Biomechanical Phenomena; D004558:Electric Stimulation / Q000379:methods; D004576:Electromyography / Q000379:methods; D005260:Female; D006181:H-Reflex / Q000502:physiology*; D006615:Hip / Q000502:physiology*; D006801:Humans; D007719:Knee Joint / Q000502:physiology*; D008297:Male; D009068:Movement / Q000502:physiology*; D009119:Muscle Contraction / Q000502:physiology; D018482:Muscle, Skeletal / Q000502:physiology*; D011187:Posture / Q000502:physiology; D016059:Range of Motion, Articular / Q000502:physiology