• Jonas Tesarz, Alexander K Schuster, Mechthild Hartmann, Andreas Gerhardt, and Wolfgang Eich.
• Department of General Internal Medicine and Psychosomatics, Medical Hospital, University of Heidelberg, Germany Mannheimer Institute of Public Health, Medical Faculty Mannheim, University of Heidelberg, Ge... more rmany. less
• Pain. 2012 Jun 1; 153 (6): 1253-1262.

AbstractThis study systematically reviewed differences in pain perception between athletes and normally active controls. We screened MEDLINE, Sport-Discus, EMBASE, Web of Science, PsycINFO, PSYNDEX, and the citations of original studies and systematic reviews. All studies on experimentally induced pain that compared pain perception between athletes and normally active controls were eligible. The main outcome measures were pain tolerance and pain threshold. Effects are described as standardized mean differences and were pooled using random-effects models. Fifteen studies including 899 subjects met the inclusion criteria. Twelve of these studies assessed pain tolerance, and 9 studies examined pain threshold. A meta-analysis of these studies revealed that athletes possessed higher pain tolerance compared to normally active controls (effect size calculated as Hedges' g=0.87, 95% confidence interval [CI(95)] 0.53-1.21; P<0.00001), whereas available data on pain threshold were less uniform (Hedges' g=0.69, CI(95) 0.16-1.21; P=0.01). After exclusion of studies with high risk of bias, differences between groups in pain threshold were not significant any longer. Our data suggest that regular physical activity is associated with specific alterations in pain perception. Psychological and biological factors that may be responsible for these alterations are discussed.Copyright © 2012 International Association for the Study of Pain. Published by Elsevier B.V. All rights reserved.

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