Modulation of the soleus H-reflex during static and dynamic imposed hip angle changes.
The aim of the study was to investigate the modulation of the soleus H-reflex during static and dynamic imposed hip angle changes. Five healthy subjects participated. H-reflexes were measured during hip joint passively flexed and extended in the sagittal plane. In flexion phase, the soleus H-reflex during dynamic conditions was lower than the stationary controls. By contrast, it was conversely higher in extension phase. The findings suggest that the modulation of the soleus H-reflex from hip proprioceptors is a major factor in passive hip movement. Additionally, the central pattern generator might modulate the soleus H-reflex.
Kamiya
Akio
A
Keio University Tsukigase Rehabilitation Center, Shizuoka, Japan. kamiya@ktrc.med.keio.ac.jp
Tanabe
Shigeo
S
Muraoka
Yoshihiro
Y
Masakado
Yoshihisa
Y
D000328:Adult; D000704:Analysis of Variance; D001696:Biomechanical Phenomena / Q000379:methods; D004558:Electric Stimulation / Q000379:methods; D004576:Electromyography / Q000379:methods; D005260:Female; D006181:H-Reflex / Q000502:physiology*; D006615:Hip; D006801:Humans; D008297:Male; D009068:Movement / Q000502:physiology*; D018482:Muscle, Skeletal / Q000502:physiology*; D011187:Posture / Q000502:physiology*; D016059:Range of Motion, Articular / Q000502:physiology*