Effects of integrating hip movements into bridge exercises on electromyographic activities of selected trunk muscles in healthy individuals |
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| Affiliation: | 1. Department of Physical Therapy, The Graduate School, Daejeon University, 96-3, Yongun-dong, Dong-gu, Daejeon, 300-716, Republic of Korea;2. Department of Physical Therapy, College of Health Science, Cheongju University, 298 Daeseongro, Sangdang-gu, Cheongju, Chungbuk, 360-764, Republic of Korea;3. Department of Physical Therapy, College of Natural Science, Daejeon University, 96-3, Yongun-dong, Dong-gu, Daejeon, 300-716, Republic of Korea;1. Graduate Education and Research Program, Canadian Memorial Chiropractic College, 6100 Leslie St., Toronto, Ontario, Canada M2H J1;2. Biomechanics and Elastography Laboratory, Canadian Memorial Chiropractic College, 6100 Leslie St., Toronto, Ontario, Canada M2H J1;1. Institute for Performance Research, Department of Exercise and Sport Science, Manchester Metropolitan University, Crewe Green Rd., Crewe, Cheshire CW1 5DU, UK;2. Pennine Acute Hospitals NHS Trust, North Manchester General Hospital, Manchester M8 5RB, UK;3. Research Institute for Health and Social Change, Manchester Metropolitan University, Manchester M13 0JA, UK;1. Department of Mechanical Engineering, Kyung Hee University, Yongin 446-701, South Korea;2. Department of Applied Mathematics, Kyung Hee University, Yongin 446-701, South Korea;1. Faculty of Physical Education and Sport Sciences, University of Thessaly, Karyes 42100 Trikala, Greece;2. CE.RE.TE.TH, Trikala, Greece |
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| Abstract: | This study aimed to identify the electromyographic (EMG) effects in selected trunk muscles after incorporating hip movement into bridging exercise. Twenty-six healthy adults (13 men and 13 women) volunteered for this experiment. EMG data (% maximum voluntary isometric contraction) were recorded from the rectus abdominis (RA), obliquus internus (OI), erector spinae (ES), and multifidus (MF) muscles of the dominant side while the subjects performed 3 types of bridging exercise, including bridging alone (Bridging 1), bridging with unilateral hip movements (Bridging 2), and bridging with bilateral hip movements (Bridging 3) in a sling suspension system. The RA and OI showed greater EMG activity during Bridging 2 and 3 compared to Bridging 1, with the greatest OI activity during Bridging 3 (p < 0.05), and the activity of the MF appeared to be greater during Bridging 3 than during Bridging 1 and 2 (p < 0.05). Furthermore, the OI/RA and MF/ES ratios were significantly higher for Bridging 2 (OI/RA = 1.89 ± 1.41; MF/ES = 1.03 ± 0.19) and Bridging 3 (OI/RA = 2.34 ± 1.86; MF/ES = 1.03 ± 0.15) than Bridging 1 (IO/RA = 1.35 ± 0.92; MF/ES = 0.98 ± 0.16). The OI/RA ratio was significantly higher for Bridging 3 than for Bridging 2. Based on these results, adding hip abduction and adduction, particularly bilateral movements, could be a useful method to enhance OI and MF EMG activity and their activities relative to global muscles during bridging exercise. |
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| Keywords: | Bridging exercise Electromyography Hip movement Trunk muscles |
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