Document Detail


Effects of Strap Cushions and Strap Orientation on Comfort and Sports Bra Performance.
MedLine Citation:
PMID:  23274596     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
PURPOSE: This study aimed to quantify bra shoulder strap pressures and to investigate how bra strap cushions moderated this pressure and resultant comfort; and to investigate the effects of variations in bra shoulder strap configuration on vertical breast motion, breast discomfort, shoulder pressures and comfort. METHODS: Fourteen healthy females (C+ bra cup) ran on a treadmill wearing a sports bra under 5 strap conditions (no straps, traditional vertical alignment, crossed-back alignment, with and without bra strap cushions inserted under the straps). Bra shoulder strap pressure, vertical breast displacement (VBD), breast pain and shoulder comfort were measured during each trial. RESULTS: Maximal pressures from 0.83 - 2.67 N/cm and mean pressures from 0.52 - 1.06 N/cm were recorded during running. The bra strap cushions only reduced maximal strap-shoulder pressure in the crossed-back strap orientation. VBD was significantly less in the crossed-back orientation compared to no straps and breast pain was significantly reduced in both the traditional and crossed-back orientations compared to the no strap condition. No significant between-condition difference was found in shoulder comfort regardless of shoulder strap orientations, although the crossed-back strap orientation resulted in significant increases in shoulder force and mean pressure values compared to the traditional strap orientation. CONCLUSIONS: The bra shoulder strap cushion was not effective in decreasing the bra shoulder strap pressure due to design flaws that prevented it from adequately increasing the strap-shoulder contact area. However, modifying shoulder strap orientation from a traditional to a crossed-back configuration could alleviate the common problem of bra shoulder straps slipping off the shoulders of the wearer, without decreasing the overall efficacy of the sports bra in providing breast support.
Authors:
Kelly-Ann Bowles; Julie R Steele
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-12-27
Journal Detail:
Title:  Medicine and science in sports and exercise     Volume:  -     ISSN:  1530-0315     ISO Abbreviation:  Med Sci Sports Exerc     Publication Date:  2012 Dec 
Date Detail:
Created Date:  2012-12-31     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8005433     Medline TA:  Med Sci Sports Exerc     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Biomechanics Research Laboratory, University of Wollongong, Wollongong, Australia.
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