QUESTION: Do different sitting postures require different levels of pelvic floor and abdominal muscle activity in healthy women? DESIGN: Observational study. PARTICIPANTS: Eight parous women with no pelvic floor dysfunction. OUTCOME MEASURES: Bilateral activity of pelvic floor muscles (assessed vaginally) and two abdominal muscles, obliquus internus abdominis and obliquus externus abdominis, during three sitting postures. RESULTS: There was a significant increase in pelvic floor muscle activity from slump supported sitting (mean 7.2% maximal voluntary contraction, SD 4.8) to both upright unsupported sitting (mean 12.6% maximal voluntary contraction, SD 7.8) (p = 0.01) and very tall unsupported sitting (mean 24.3% maximal voluntary contraction, SD 14.2) (p = 0.004). Activity in both abdominal muscles also increased but did not reach statistical significance. CONCLUSION: Both unsupported sitting postures require greater pelvic floor muscle activity than the supported sitting posture.
QUESTION: Do different sitting postures require different levels of pelvic floor and abdominal muscle activity in healthy women? DESIGN: Observational study. PARTICIPANTS: Eight parous women with no pelvic floor dysfunction. OUTCOME MEASURES: Bilateral activity of pelvic floor muscles (assessed vaginally) and two abdominal muscles, obliquus internus abdominis and obliquus externus abdominis, during three sitting postures. RESULTS: There was a significant increase in pelvic floor muscle activity from slump supported sitting (mean 7.2% maximal voluntary contraction, SD 4.8) to both upright unsupported sitting (mean 12.6% maximal voluntary contraction, SD 7.8) (p = 0.01) and very tall unsupported sitting (mean 24.3% maximal voluntary contraction, SD 14.2) (p = 0.004). Activity in both abdominal muscles also increased but did not reach statistical significance. CONCLUSION: Both unsupported sitting postures require greater pelvic floor muscle activity than the supported sitting posture.
Authors: Daria Chmielewska; Magdalena Stania; Grzegorz Sobota; Krystyna Kwaśna; Edward Błaszczak; Jakub Taradaj; Grzegorz Juras Journal: Biomed Res Int Date: 2015-02-22 Impact factor: 3.411
Authors: Brenda M Button; Christine Wilson; Ruth Dentice; Narelle S Cox; Anna Middleton; Esta Tannenbaum; Jennifer Bishop; Robyn Cobb; Kate Burton; Michelle Wood; Fiona Moran; Ryan Black; Summar Bowen; Rosemary Day; Julie Depiazzi; Katherine Doiron; Michael Doumit; Tiffany Dwyer; Alison Elliot; Louise Fuller; Kathleen Hall; Matthew Hutchins; Melinda Kerr; Annemarie L Lee; Christina Mans; Lauren O'Connor; Ranjana Steward; Angela Potter; Tshepo Rasekaba; Rebecca Scoones; Ben Tarrant; Nathan Ward; Samantha West; Dianne White; Lisa Wilson; Jamie Wood; Anne E Holland Journal: Respirology Date: 2016-04-18 Impact factor: 6.424
Authors: Marieke L van Engelenburg-van Lonkhuyzen; Esther M J Bols; Marc A Benninga; Wim A Verwijs; Rob A de Bie Journal: Eur J Pediatr Date: 2016-12-19 Impact factor: 3.183
Authors: Tomasz Halski; Lucyna Słupska; Robert Dymarek; Janusz Bartnicki; Urszula Halska; Agata Król; Małgorzata Paprocka-Borowicz; Janusz Dembowski; Romuald Zdrojowy; Kuba Ptaszkowski Journal: Biomed Res Int Date: 2014-02-19 Impact factor: 3.411