Trunk muscle activity in two-leg standing to one-leg standing in healthy elderly adults

Abstract

[Purpose] Postural control has been shown to decline with age. The purpose of this study was to clarify the muscular activities of the trunk and hip joint while moving from two-leg standing to one-leg standing in healthy elderly adults and compare them with healthy young subjects. [Subjects and Methods] For 5 elderly and 8 young men subjects, electromyography activities of the left obliquus internus abdominis, left multifidus, left gluteus medius, and right ilio-psoas muscles were recorded using a surface electromyograph. EMG data were analyzed from 500 ms before lift-off to lift-off (0 ms). [Results] In the results, the muscular activities were not statistically significant between elderly and young people. [Conclusion] The presence of a qualitative change in muscle activities of elderly people was not demonstrated.