[논문]Trunk Muscle Activation during Bridge Exercise with Various Shoulder Supporting Surfaces

Son, Ho-hee

doi:10.13066/kspm.2015.10.3.81

Trunk Muscle Activation during Bridge Exercise with Various Shoulder Supporting Surfaces 원문보기

대한물리의학회지 = Journal of the korean society of physical medicine, v.10 no.3, 2015년, pp.81 - 86

Son, Ho-hee (Department of Physical Therapy, College of Health Sciences, Catholic University of Pusan)

Abstract ▼ AI-Helper

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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문제 정의

Bridge exercises are commonly used in spine stabilization programs to maintain and improve trunk muscle coactivation patterns for spine stability (Monfort-Panege et al, 2009). This study was conducted to identify the change in trunk muscle activity during bridge exercise on different shoulder support surface. Use of unstable surface (Swiss ball, TOGU, sling) has been a trend in the rehabilitation setting (Marshall and Murphy, 2008; Wahl and Behm, 2008), but there is little evidence to change the shoulder support surface into a unstable surface.

제안 방법

Despite the large number of studies that have analyzed the trunk muscular response during bridge exercise, none of these studies were designed to change the shoulder support surface. The purpose of this study is to analyze the trunk muscle activity during bridge exercise with various shoulder support surface(stable, sling, Swiss ball).

대상 데이터

Twenty asymptomatic subjects volunteered in this study; 10 men(age: 21.9±1.45yrs, height: 174.7±3.92cm, weight: 66.3±6.24kg) and 10 women(age: 20.7±0.48yrs, height: 164.7±3.2cm, weight: 56.6±3.86kg).

성능/효과

In their study, the sling based exercise resulted in a significantly higher activation of the local stabilizers of the spine compared to traditional bridging exercise. As seen in this study, activities of the RA and EO muscles were significantly increased during performing bridge exercise with their shoulders on sling and Swiss ball. These findings suggested that exercise can be designed to maximize or minimize trunk muscle exertion depending on the needs of the exercise population.
The results of this study, the bridge exercise with their shoulder on a sling led to significantly higher activity of the RA and EO muscles than during conventional bridge exercise and bridge exercise with their shoulder on a stable bench shoulder surface. A previous study has suggested that performing stabilizing exercise on a labile surfaces changes the level of muscle activity and the way that the muscles coactivate to stabilize the spine (Vera-Gracia et al, 2000).

후속연구

Future research should focus on different population such as low back pain patients. And further research should be to determine the effective positions whether trunk muscle activities should be increased during minimizing RA activity.

참고문헌 (21)

Choi Y, Kang H. The effects of sling exercise using vibration on trunk muscle activities of healthy adults. J Phys Ther Sci. 2013;25(10):1291-4.

상세보기
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Czaprowski D, Afeltowicz A, Gebicka A, et al. Abdominal muscle EMG-activity during bridge exercises on stable and unstable surfaces. Phys Ther Sport. 2014; 15(3):162-8.

상세보기
Desai I, Marshall PW. Acute effect of labile surfaces during core stability exercises in people with and without low back pain. J Electromyogr Kinesiol. 2010;20(6): 1155-62.

상세보기
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Lehman GJ, Gordon T, Langley J, et al. Replacing a Swiss ball for an exercise bench causes variable changes in trunk muscle activity during upper limb strength exercises. Dyn Med. 2005a;4(6).
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McGill SM, Karpowicz A. Exercises for spine stabilization: motion/motor patterns, stability progressions, and clinical technique. Arch Phys Med Rehabil. 2009;90(1):118-26.

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Monfort-Panego M, Vera-Garcia FJ, Sanchez-Zuriaga D, et al. Electromyographic studies in abdominal exercises: a literature synthesis. J Manipulative Physiol Ther. 2009;32(3):232-44.

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Okubo Y, Kaneoka K, Imai A, et al. Electromyographic analysis of transversus abdominis and lumbar multifidus using wire electrodes during lumbar stabilization exercises. J Orthop Sports Phys Ther. 2010;40(11):743-50.

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Richardson C, Hodges PW, Hides J, et al. Therapeutic exercise for lumbopelvic stabilization : a motor control approach for the treatment and prevention of low back pain(2nd ed). Edinburgh New York, Churchill Livingstone. 2004.
Saliba SA, Croy T, Guthrie R, et al. Differences in transverse abdominis activation with stable and unstable bridging exercises in individuals with low back pain. N Am J Sports Phys Ther. 2010;5(2):63-73.
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Stokes IA, Gardner-Morse MGHenry SM. Abdominal muscle activation increases lumbar spinal stability: analysis of contributions of different muscle groups. Clin Biomech (Bristol, Avon). 2011;26(8):797-803.

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Vera-Garcia FJ, Grenier SG, McGill SM. Abdominal muscle response during curl-ups on both stable and labile surfaces. Phys Ther. 2000;80(6):564-9.

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Trunk Muscle Activation during Bridge Exercise with Various Shoulder Supporting Surfaces 원문보기

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Trunk Muscle Activation during Bridge Exercise with Various Shoulder Supporting Surfaces 원문보기

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