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KMID : 1211620150100030299
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Journal of the Korean Society of Physical Medicine
2015 Volume.10 No. 3 p.299 ~ p.304
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Trunk Muscle Activation during Bridge Exercise with Various Shoulder Supporting Surfaces
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:Son Ho-hee
저자없음:No authors listed
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Abstract
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PURPOSE : Bridge exercises are broadly used to develop trunk co-activation patterns that promote spine stability. This study was to analyze the trunk muscle activity during bridge exercise with various shoulder support surface(stable, sling, Swiss ball).
METHODS : The subjects were 20 healthy subjects in their twenties. Subjects were performed bridge exercise on 4 different shoulder support surfaces using stable and labile instruments. 1) Bridge exercise on a stable surface. 2) Bridge exercise with their shoulder on a stable bench. 3) Bridge exercise with their shoulder on a sling. 4) Bridge exercise with their shoulder on a Swiss ball. Rectus abdominis, erector spinae, internal oblique, external oblique muscle activities were measured using electromyography.
RESULTS : There were significant differences in RA, EO muscles between performing each of the 4 exercises(p<.05). RA and EO was recorded the highest activity during the bridge exercise with their shoulder on a sling. The lowest activity was recorded during conventional supine bridge on a stable surface. There were no differences found for the EO/RA and IO/RA ratio. The EO/RA and IO/RA ratio was the highest in the bridge exercise with their shoulders resting on a stable bench.
CONCLUSION : These findings suggest that change of shoulder support surface during bridge exercise may be useful for enhancing the trunk stability.
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KEYWORD
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Bridge exercise, Trunk stability, Labile surface
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