Trunk muscle activity during lumbar stabilization exercises on both a stable and unstable surface

Atsushi Imai, Koji Kaneoka*, Yu Okubo, Itsuo Shiina, Masaki Tatsumura, Shigeki Izumi, Hitoshi Shiraki

*この研究の対応する著者

研究成果: Review article査読

132 被引用数 (Scopus)

抄録

STUDY DESIGN: Controlled laboratory study. OBECTIVES: To clarify whether differences in surface stability influence trunk muscle activity. BACKGROUND: Lumbar stabilization exercises on unstable surfaces are performed widely. One perceived advantage in performing stabilization exercises on unstable surfaces is the potential for increased muscular demand. However, there is little evidence in the literature to help establish whether this assumption is correct. METHDS: Nine healthy male subjects performed lumbar stabilization exercises. Pairs of intramuscular fine-wire or surface electrodes were used to record the electromyographic signal amplitude of the rectus abdominis, the external obliques, the transversus abdominis, the erector spinae, and lumbar multifidus. Five exercises were performed on the floor and on an unstable surface: elbow-toe, hand-knee, curl-up, side bridge, and back bridge. The EMG data were normalized as the percentage of the maximum voluntary contraction, and data between doing each exercise on the stable versus unstable surface were compared using a Wilcoxon signed-rank test. RESULTS: With the elbow-toe exercise, the activity level for all muscles was enhanced when performed on the unstable surface. When performing the hand-knee and side bridge exercises, activity level of the more global muscles was enhanced when performed on an unstable surface. Performing the curl-up exercise on an unstable surface, increased the activity of the external obliques but reduced transversus abdominis activation. CONCLUSION: This study indicates that lumbar stabilization exercises on an unstable surface enhanced the activities of trunk muscles, except for the back bridge exercise.

本文言語English
ページ(範囲)369-375
ページ数7
ジャーナルJournal of Orthopaedic and Sports Physical Therapy
40
6
DOI
出版ステータスPublished - 2010 6

ASJC Scopus subject areas

  • 理学療法、スポーツ療法とリハビリテーション

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