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The bar sinister: does handlebar level damage the pelvic floor in female cyclists?

Authors
Partin-SN; Connell-KA; Schrader-S; Lacombe-J; Lowe-B; Sweeney-A; Reutman-S; Wang-A; Toennis-C; Melman-A; Mikhail-M; Guess-MK
Source
J Sex Med 2012 May; 9(5):1367-1373
NIOSHTIC No.
20040475
Abstract
INTRODUCTION: Cycling is associated with genital neuropathies and erectile dysfunction in males. Women riders also have decreased genital sensation; however, sparse information exists addressing the effects of modifiable risks on neurological injuries in females. AIM: This study assesses the effects of bicycle setup and cyclists' attributes on GS and saddle pressures among female cyclists. METHODS: Previously, we compared genital sensation in competitive female cyclists (N = 48) to that of female runners (N = 22). The current study is a subanalysis of the 48 cyclists from the original study group. Nonpregnant, premenopausal women who rode at least 10 miles per week, 4 weeks per month were eligible for participation. MAIN OUTCOME MEASURES: Genital sensation was measured in microns using biosthesiometry measures of vibratory thresholds (VTs). Perineal and total saddle pressures were determined using a specialized pressure map and recorded in kilopascals (kPA). RESULTS: Handlebars positioned lower than the saddle correlated with increased perineum saddle pressures and decreased anterior vaginal and left labial genital sensation (P < 0.05, P < 0.02, P < 0.03, respectively). Low handlebars were not associated with total saddle pressures or altered genital sensation in other areas. After adjusting for age and saddle type, low handlebars were associated with a 3.47-kPA increase in mean perineum saddle pressures (P < 0.04) and a 0.86-micron increase in anterior vagina VT (P < 0.01). CONCLUSION: Handlebars positioned lower than the saddle were significantly associated with increased perineum saddle pressures and decreased genital sensation in female cyclists. Modifying bicycle setup may help alleviate neuropathies in females. Additional research is warranted to further assess the extent of the associations.
Keywords
Equipment-design; Bicycles; Women; Biomechanics; Biomechanical-engineering; Human-factors-engineering; Sex-factors; Body-mechanics; Body-regions; Biological-effects; Physical-exercise; Neuropathy; Neurological-system; Measurement-equipment; Pressure-testing; Reproductive-hazards; Reproductive-system; Author Keywords: Cyclist's Attributes; Genital Sensation; Handlebars; Seat Pressure; Pelvic Floor; Bicycling
Contact
Marsha K. Guess, MD, Section of Urogynecology & Reconstructive Pelvic Surgery, Department of Obstetrics, Gynecology & Reproductive Sciences, Yale University School of Medicine, New Haven, CT 06511
Publication Date
20120501
Document Type
Journal Article
Email Address
marsha.guess@yale.edu
Fiscal Year
2012
NTIS Accession No.
NTIS Price
Identifying No.
B03282012
Issue of Publication
5
ISSN
1743-6095
NIOSH Division
DART; DCAS
Priority Area
Manufacturing
Source Name
The Journal of Sexual Medicine
State
TX; CT; OH; VT; AK; NY
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