Quantification of abdominal and pelvic floor muscle synergies in response to voluntary pelvic floor muscle contractions |
| |
| Institution: | 1. Department of Life Sciences, Graduate School of Arts and Sciences, University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo 153-8902, Japan;2. School of Rehabilitation, Université de Montréal, 7077 Avenue du Parc, Montréal, Quebec H3C 3J7, Canada;3. Pathokinesiology Laboratory, Centre for Interdisciplinary Research in Rehabilitation of the Institut de réadaptation Gingras-Lindsay-de-Montréal, 6300 Avenue du Darlington, Montréal, Quebec H3S 2J4, Canada;4. Institute of Biomaterials and Biomedical Engineering, University of Toronto, 164 College Street, Toronto, Ontario M5S 3G9, Canada;5. Rehabilitation Engineering Laboratory, Lyndhurst Centre, Toronto Rehabilitation Institute – University Health Network, 520 Sutherland Drive, Toronto, Ontario M4G 3V9, Canada;1. Department of Obstetrics and Gynecology, University of Utah School of Medicine, Salt Lake City, UT;2. Department of Exercise and Sport Science, University of Utah School of Medicine, Salt Lake City, UT;1. Department of Exercise and Sport Science, University of Utah, Salt Lake City, UT;2. Department of Family and Preventive Medicine, University of Utah, Salt Lake City, UT;3. Department of Obstetrics and Gynecology, University of Utah, Salt Lake City, UT;1. Department of Urology, University of Antwerp, Edegem, Belgium;2. Faculty of Medicine and Health Sciences, University of Antwerp, Edegem, Belgium;3. Faculty of Medicine, University of New South Wales, Kensington, Sydney, Australia |
| |
| Abstract: | The relative levels of pelvic floor muscle (PFM) activation and pressure generated by maximum voluntary PFM contractions were investigated in healthy continent women. The normal sequence of abdominal and PFM activation was determined.Fifteen women performed single and repeated maximum voluntary PFM contractions in supine, sitting and standing. PFM electromyographic (EMG) signals and associated intra-vaginal pressure data were recorded simultaneously. Surface EMG data were recorded from rectus abdominus (RA), external obliques (EO), internal obliques (IO) and transversus abdominus (TA).Abdominal and PFM EMG and intra-vaginal pressure amplitudes generated during voluntary PFM contractions were not different among the positions. Muscle activation sequence differed by position. In supine, EO activation preceded all other muscles by 27 ms (p = 0.043). In sitting, all of the muscles were activated simultaneously. In standing, RA and EO were activated 11 and 17 ms, respectively, prior to the PFMs and TA and IO were activated 10 and 12 ms, respectively, after the PFMs (p ? 0.001).The results suggest that women are able to perform equally strong PFM contractions in supine, sitting and standing, however the pattern of abdominal and PFM activation varies by position. These differences may be related to position-dependent urine leakage in women with stress incontinence. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
