Long distance bicycle riding causes prostate-specific antigen to increase in men aged 50 years and over

To investigate whether bicycle riding alters total prostate-specific antigen (tPSA) serum concentrations in healthy older men. 129 male participants, ranging in age from 50 to 71 years (mean 55 years), rode in a recreational group bicycle ride of between 55 and 160 kilometers. Blood samples for tPSA...

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Bibliographic Details
Published in:PloS one 2013-02, Vol.8 (2), p.e56030-e56030
Main Authors: Mejak, Sandra L, Bayliss, Julianne, Hanks, Shayne D
Format: Article
Language:English
Subjects:
Age
Aged
Antigens
Bicycles
Bicycling
Biology
Cancer surgery
Comparative analysis
Cycling
Cyclists
Ejaculation
Exercise
Humans
Male
Medical screening
Medicine
Middle Aged
Normality
Phosphatase
Physical fitness
Prostate
Prostate cancer
Prostate-specific antigen
Prostate-Specific Antigen - blood
Prostatic Neoplasms - blood
Prostatic Neoplasms - diagnosis
Reference Values
Regression analysis
Riding
Studies
Urological surgery
Urology
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Summary:To investigate whether bicycle riding alters total prostate-specific antigen (tPSA) serum concentrations in healthy older men. 129 male participants, ranging in age from 50 to 71 years (mean 55 years), rode in a recreational group bicycle ride of between 55 and 160 kilometers. Blood samples for tPSA analysis were drawn within 60 minutes before starting, and within 5 minutes after completing the ride. The pre-cycling and post-cycling tPSA values were log transformed for normality and compared using paired t-tests. Linear regression was used to assess the relationship between changes in tPSA with age and distance cycled. Bicycle riding caused tPSA to increase by an average of 9.5% (95% CI = 6.1-12.9; p
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0056030