- Volume 10 Issue 3
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.
Bridge exercise;Trunk stability;Labile surface
- 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. https://doi.org/10.1589/jpts.25.1291
- Cram JR, Kasman GS, Holtz J. Introduction to surface electromyography. Gaithersburg. Md. Aspen Publishers. 1998.
- 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. https://doi.org/10.1016/j.ptsp.2013.09.003
- 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. https://doi.org/10.1016/j.jelekin.2010.08.003
- Garcia-Vaquero MP, Moreside JM, Brontons-Gil E, et al. Trunk muscle activation during stabilization exercises with single and double leg support. J Electromyogr Kinesiol. 2012;22(3):398-406. https://doi.org/10.1016/j.jelekin.2012.02.017
- Imai A, Kaneoka K, Okubo Y, et al. Trunk muscle activity during lumbar stabilization exercises on both a stable and unstable surface. J Orthop Sports Phys Ther. 2010;40(6):369-75. https://doi.org/10.2519/jospt.2010.3211
- Kavcic N, Grenier S, McGill SM. Quantifying tissue loads and spine stability while performing commonly prescribed low back stabilization exercises. Spine (Phila Pa 1976). 2004;29(20):2319-29. https://doi.org/10.1097/01.brs.0000142222.62203.67
- Kim MJ, Oh DW, Park HJ. Integrating arm movement into bridge exercise: Effect on EMG activity of selected trunk muscles. J Electromyogr Kinesiol. 2013;23(5): 1119-23. https://doi.org/10.1016/j.jelekin.2013.07.001
- 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).
- Lehman GJ, Hoda W, Oliver S. Trunk muscle activity during bridging exercises on and off a Swiss ball. Chiropr Osteopat. 2005b;13(14).
- Marshall PW, Murphy BA. Muscle activation changes after exercise rehabilitation for chronic low back pain. Arch Phys Med Rehabil. 2008;89(7):1305-13. https://doi.org/10.1016/j.apmr.2007.11.051
- McGill SM, Cholewicki J. Biomechanical basis for stability: an explanation to enhance clinical utility. J Orthop Sports Phys Ther. 2001;31(2):96-100. https://doi.org/10.2519/jospt.2001.31.2.96
- 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. https://doi.org/10.1016/j.apmr.2008.06.026
- 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. https://doi.org/10.1016/j.jmpt.2009.02.007
- 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. https://doi.org/10.2519/jospt.2010.3192
- 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.
- Stevens VK, Bouche KG, Mahieu NN, et al. Trunk muscle activity in healthy subjects during bridging stabilization exercises. BMC Musculoskelet Disord. 2006;7(75).
- 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. https://doi.org/10.1016/j.clinbiomech.2011.04.006
- 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.
- Wahl MJ, Behm DG. Not all instability training devices enhance muscle activation in highly resistance-trained individuals. J Strength Cond Res. 2008;22(4):1360-70. https://doi.org/10.1519/JSC.0b013e318175ca3c
Supported by : Catholic University of Pusan