The impact of a familiarization session on the magnitude and stability of active and passive pelvic floor muscle forces measured through intravaginal dynamometry
Autor: | Linda McLean, Marie-Ève Bérubé, Kevin Varette, Catriona S. Czyrnyj |
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Rok vydání: | 2018 |
Předmět: |
Adult
medicine.medical_specialty Urology Maximum voluntary contraction 030232 urology & nephrology Muscle Strength Dynamometer Pelvic Floor Muscle Pelvic Floor Disorders Session (web analytics) 03 medical and health sciences Young Adult 0302 clinical medicine Rate of force development Medicine Humans Muscle Skeletal 030219 obstetrics & reproductive medicine Pelvic floor Dynamometer business.industry Repeatability Pelvic Floor Middle Aged medicine.anatomical_structure Vagina Physical therapy Female Neurology (clinical) business Muscle Contraction |
Zdroj: | Neurourology and urodynamics. 38(3) |
ISSN: | 1520-6777 |
Popis: | AIMS The aim of this study was to investigate the impact of task familiarization on (1) the magnitude and (2) the repeatability of active and passive properties of the female pelvic floor muscles (PFMs) measured using automated intra-vaginal dynamometry. METHODS Women attended three laboratory sessions at one-week intervals. After receiving initial task instruction and feedback at the start of the first session, standardized instructions were given while women performed maximal effort voluntary contractions of their PFMs with the dynamometer arms open at two different diameters and kept their PFMs relaxed while the dynamometer arms opened to 40 mm at two speeds. Outcomes included baseline force, peak force, relative peak forces (N), rate of force development (N/s) and stiffness. Between session effects were tested for all outcomes using one-way ANOVAs. Intra-class correlation coefficients (ICCs) and minimal detectable change values were computed within each session and between sessions 1 and 2 and sessions 2 and 3. RESULTS Twenty nulliparous women (mean age = 35 ± 15 years) participated. No differences in the mean values were found across the three visits for any outcomes. Within sessions, neither ICC nor minimal detectable change differed among sessions and between-session ICC values were not different between visits 1 and 2 and visits 2 and 3. CONCLUSIONS There is no evidence of a familiarization effect over a two-week period on the amplitude nor repeatability of dynamometric measures of active or passive PFM properties recorded from nulliparous women. |
Databáze: | OpenAIRE |
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