Document Detail

Test-retest intra-rater reliability of vaginal measurement of pelvic floor muscle strength using Myomed 932.
MedLine Citation:
PMID:  19579139     Owner:  NLM     Status:  MEDLINE    
OBJECTIVES: To investigate test-retest intra-rater reliability of measurements of pelvic floor muscle (PFM) strength using Myomed 932 (Enraf-Nonius, Delft, the Netherlands). DESIGN: Test-retest intra-rater reliability test with a 2-7 day interval. SETTING: Physiotherapy outpatient clinic in association with the Department of Physiotherapy, University of Iceland. POPULATION: Twenty healthy female volunteers in Reykjavik metropolitan area, Iceland, with a mean age of 43.8 (SD 9.8) years, mean body mass index (BMI) 26.2 (SD 5.3), and mean parity 2.1 children (SD 1.0). MAIN OUTCOME MEASURES: PFM strength during two attempts of maximal voluntary contraction (MVC) measured as vaginal squeeze pressure in hectoPascals (hPa). RESULTS: Mean MVC was 34.45 hPa (95% CI: 26.07-42.83) on Day 1 and 34.05 hPa (95% CI: 26.66-41.44) on Day 2. The measurements ranged from 5-74 hPa interindividually on Day 1 and 5-62 hPa on Day 2. Intraclass Correlation Coefficient (ICC) was 0.97; p < 0.001 and coefficient of variation (CV%) was 11.09%. There was no significant difference between the first and second tests (p = 0.74). CONCLUSION: This test-retest intra-rater reliability study for Myomed 932 showed a very good reliability using ICC. The CV%, however, indicated some degree of intra-individual variation. We suggest that this device can be used both in practice and clinical trials for assessing female PFM strength.
Thorgerdur Sigurdardottir; Thora Steingrimsdottir; Arni Arnason; Kari Bø
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Publication Detail:
Type:  Clinical Trial; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Acta obstetricia et gynecologica Scandinavica     Volume:  88     ISSN:  1600-0412     ISO Abbreviation:  Acta Obstet Gynecol Scand     Publication Date:  2009  
Date Detail:
Created Date:  2009-07-24     Completed Date:  2009-08-10     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0370343     Medline TA:  Acta Obstet Gynecol Scand     Country:  England    
Other Details:
Languages:  eng     Pagination:  939-43     Citation Subset:  IM    
Department of Physiotherapy, University of Iceland, Reykjavik, Iceland.
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MeSH Terms
Electromyography / instrumentation*
Equipment Design
Middle Aged
Muscle Strength*
Observer Variation
Pelvic Floor / physiology*
Physical Therapy Modalities / instrumentation*
Reproducibility of Results

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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