Purpose: We investigated the characteristics of electromyographic trunk muscle activities and the relationship between the trunk muscle activities and postural sway during one-leg standing. Subjects: Ten people (25.1 ± 4.4 years old) participated in this study. Methods: Electromyographic trunk muscle activities and postural sway were evaluated during one-leg standing and twoleg standing. Results: Thoracic and lumbar erector spinae and external oblique on the side of the raised leg were activated significantly more higher in one-leg standing than in two-leg standing. Lumbar multifidus and internal oblique on the side of standing leg had a tendency to be activated higher in one-leg standing. After some trunk muscle activities on the side of the raised leg and postural sway correlated significantly. Conclusion: The results suggest that trunk muscle activities influence the balance ability during one-leg standing.
CITATION STYLE
Suzuki, T., Hirata, J., Kuriki, A., Tomiyama, M., Wasada, K., Oda, K., … Watanabe, S. (2009). Japanese Source. Rigakuryoho Kagaku, 24(1), 103–107. https://doi.org/10.1589/rika.24.103
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