Control Mechanism of Knee Joint Against Unexpected External Force in Healthy Subjects

This study was designed to elucidate the relationship between disorders in joint sense receptors and osteoarthritis. Of 20 healthy adults, latency of T wave and involuntary movement against unexpected external force were examined by surface electromyography. Electromyographic wave of voluntary movem...

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Bibliographic Details
Published inJournal of exercise physiology Vol. 8; no. 1; pp. 21 - 24
Main Authors MINEHISA, Kyoko, SHIMIZU, Mitsuyoshi, AOTO, Keiji, NAGAO, Tetsuya, MATSUNAGA, Yoshihiro
Format Journal Article
LanguageEnglish
Published The Society of Physical Therapy Science 1993
Subjects
knee joint
long loop tract
stretch reflex
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Summary:This study was designed to elucidate the relationship between disorders in joint sense receptors and osteoarthritis. Of 20 healthy adults, latency of T wave and involuntary movement against unexpected external force were examined by surface electromyography. Electromyographic wave of voluntary movement could not be divided from that of stretch reflex. The latency of long loop tract showed individual differences and was significantly longer in elderly subjects than in young subjects. These results suggest that osteoarthritis may highly be influenced not only by ageing but also by neural factors, especially disorders in joint sense receptors.
ISSN:0912-7100
DOI:10.1589/rika1986.8.21