Study on the longest immobility time of knee joint in healthy adults

Abstract

[Purpose] The purpose of this study was to evaluate the longest immobility time of knee joint during sleep in healthy adults. [Subjects and Methods] The subjects were 12 healthy adult women and the knee joint motion during sleep was measured with an electric goniometer. [Results] The average sleep time was about 6 hours. The longest knee joint immobility time was up to about 2 hours. [Conclusion] It seems that joint contracture of healthy adults does not occur because 2 hours knee joint immobility does not cause muscles contractures in knee joint. In the future, I would like to verify the relationship between the longest immobility time of the knee joint and the occurrence of joint contracture through cases.