Test-retest reliability of an instrumented speculum for measuring vaginal closure force No conflict of interest reported by the author(s). Work performed at the University of Michigan School of Nursing and University of Michigan Medical Center.
dc.contributor.author | Miller, J. M. | en_US |
dc.contributor.author | Ashton-Miller, James A. | en_US |
dc.contributor.author | Perruchini, D. | en_US |
dc.contributor.author | DeLancey, John O. L. | en_US |
dc.date.accessioned | 2007-12-04T18:31:06Z | |
dc.date.available | 2008-11-05T15:05:43Z | en_US |
dc.date.issued | 2007-10 | en_US |
dc.identifier.citation | Miller, J.M.; Ashton-Miller, J.A.; Perruchini, D.; DeLancey, J.O.L. (2007). "Test-retest reliability of an instrumented speculum for measuring vaginal closure force No conflict of interest reported by the author(s). Work performed at the University of Michigan School of Nursing and University of Michigan Medical Center. ." Neurourology and Urodynamics 26(6): 858-863. <http://hdl.handle.net/2027.42/57364> | en_US |
dc.identifier.issn | 0733-2467 | en_US |
dc.identifier.issn | 1520-6777 | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/57364 | |
dc.identifier.uri | http://www.ncbi.nlm.nih.gov/sites/entrez?cmd=retrieve&db=pubmed&list_uids=17357114&dopt=citation | |
dc.description.abstract | Aims: The study aimed to: a) determine reliability of an instrumented speculum designed for measuring intravaginal closure pressure, and b) compare findings with a comparable device reported in the literature. The goal of these new devices is to reduce subjectivity, improve precision, and acknowledge reliability issues in quantifying levator ani closure force acting on the vagina. Methods: The instrumented speculum consisted of two parallel aluminum bills, similar in size to a Peterson speculum. Strain gages located near the root of each bill measure the magnitude of force exerted in the distal vagina. A contraction of the “U-shaped” levator ani muscle closes the levator hiatus with resultant reaction force measured by the speculum in the mid-sagittal plane. We tested the device in twelve nulliparous women making repeated measures within and across 3 different visit days. All measures were made by the same investigator. Results: Same day measures were repeatable within ±3.8 N by the third visit, with lesser repeatability on the 1st and 2nd visit days. Across days, repeatability was improved by Visits 2 and 3 with a coefficient of repeatability between those days of ±5.5 N. Better repeatability was obtained using averaged scores rather than ‘best effort’ ; but average scores can underestimate best effort. Conclusion: Reasonable within-visit repeatability was found. Across-visit repeatability is consistent with the known difficulty that women have in maximally isolating and activating their levator ani muscles. The results corroborate the repeatability results of Dumoulin et al. [ 2004 ] using a similar type of dynamometer. Neurourol. Urodynam. 26:858–863, 2007. © 2007 Wiley-Liss, Inc. | en_US |
dc.format.extent | 148359 bytes | |
dc.format.extent | 3118 bytes | |
dc.format.mimetype | application/pdf | |
dc.format.mimetype | text/plain | |
dc.publisher | Wiley Subscription Services, Inc., A Wiley Company | en_US |
dc.subject.other | Life and Medical Sciences | en_US |
dc.subject.other | Miscellaneous Medical | en_US |
dc.title | Test-retest reliability of an instrumented speculum for measuring vaginal closure force No conflict of interest reported by the author(s). Work performed at the University of Michigan School of Nursing and University of Michigan Medical Center. | en_US |
dc.type | Article | en_US |
dc.rights.robots | IndexNoFollow | en_US |
dc.subject.hlbsecondlevel | Internal Medicine and Specialties | en_US |
dc.subject.hlbtoplevel | Health Sciences | en_US |
dc.description.peerreviewed | Peer Reviewed | en_US |
dc.contributor.affiliationum | School of Nursing, University of Michigan, Ann Arbor, Michigan ; Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, Michigan ; Research Assistant Professor and Assistant Research Scientist. ; 400 N. Ingalls, Division 2, Ann Arbor, MI 48109-0482. | en_US |
dc.contributor.affiliationum | Department of Mechanical Engineering, Department of Biomedical Engineering, Institute of Gerontology, University of Michigan, Ann Arbor, Michigan ; Distinguished Research Professor. | en_US |
dc.contributor.affiliationum | Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, Michigan ; Norman F Miller Professor of Gynecology; also Director of Pelvic Floor Research Group and Fellowship in Female Pelvic Medicine and Reconstructive Surgery. | en_US |
dc.contributor.affiliationother | Division of Gynecology, Department of Obstetrics and Gynecology, University Hospital of Zurich, Zurich, Switzerland | en_US |
dc.identifier.pmid | 17357114 | |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/57364/1/20407_ftp.pdf | en_US |
dc.identifier.doi | http://dx.doi.org/10.1002/nau.20407 | en_US |
dc.identifier.source | Neurourology and Urodynamics | en_US |
dc.owningcollname | Interdisciplinary and Peer-Reviewed |
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