http://repub.eur.nl/res/aut/44608/ List of Publications en http://repub.eur.nl/static-eur/img/logo.png http://repub.eur.nl http://repub.eur.nl/res/pub/29932/ 2008-12-01T00:00:00Z The aim of this study is to identify risk factors for lower extremity injuries in male marathon runners. A random sample of 1500 recreational male marathon runners was drawn. Possible risk factors were obtained from a baseline questionnaire 1 month before the start of the marathon. Information on injuries sustained shortly before or during the marathon was obtained using a post-race questionnaire. Of the 694 male runners who responded to the baseline and post-race questionnaire, 28% suffered a self-reported running injury on the lower extremities in the month before or during the marathon run. More than six times race participation in the previous 12 months [odds ratio (OR) 1.66; confidence interval (CI) 1.08-2.56], a history of running injuries (OR 2.62; CI 1.82-3.78), high education level (OR 0.73; CI 0.51-1.04) and daily smoking (OR 0.23; CI 0.05-1.01) were associated with the occurrence of lower extremity injuries. Among the modifiable risk factor studies, a training distance <40 km a week is a strong protective factor of future calf injuries, and regular interval training is a strong protective factor for knee injuries. Other training characteristics appear to have little or no effect on future injuries. Copyright http://repub.eur.nl/res/pub/30042/ 2008-04-01T00:00:00Z The aim of this study is to describe the prevalence and incidence of lower extremity injuries occurring before and during the Rotterdam marathon, and to evaluate the impact of the injuries. A cohort study was compiled of recreational male participants in the 2005 Rotterdam marathon. Demographic data and information on previous injuries were obtained from participants using a baseline questionnaire. Information on injuries sustained shortly before or during the marathon was obtained from a post-race questionnaire. Seven hundred and twenty-five (48.3%) participants returned the baseline questionnaire. The 1-year prevalence of running injuries was 54.8%. In the post-race questionnaire, 15.6% of all respondents reported at least one new lower extremity injury in the month preceding the Rotterdam marathon. The incidence of lower extremity injuries occurring during the marathon was 18.2%; most of these injuries occurred in the calf, knee and thigh. Immediately after the marathon the median score of pain intensity at rest was 2 points vs 4.5 points during physical exercise. Hence we can conclude that running injuries are very common among recreational male marathon runners. However, the pain severity and consequences for work and daily activities seem to be relatively low 1 week after the marathon. http://repub.eur.nl/res/pub/36711/ 2007-01-01T00:00:00Z OBJECTIVES: To investigate in recreational runners the 3 month prognosis of and medical consumption caused by running injuries occurring shortly before or during a marathon. Possible prognostic factors for persistent complaints were also evaluated. DESIGN: Prospective cohort study. SETTING: Rotterdam, the Netherlands. PARTICIPANTS: One hundred sixty-five recreational marathon runners who reported a new running injury in the month before or during the Rotterdam Marathon 2005 and who were available for follow-up. ASSESSMENT OF DETERMINANTS: Demographic, running (training distance, frequency and duration, experience, etc), lifestyle (other sports, smoking), and injury-related factors were collected at baseline. MAIN OUTCOME MEASUREMENTS: Persistent complaints of running injuries occurring in the month before or during the Rotterdam marathon at 3 month follow-up. Potential prognostic factors for persistent complaints were analyzed by multivariate logistic regression. RESULTS: At 3 month follow-up, 25.5% of the 165 injured runners reported persistent complaints; they had little pain during exercise and almost no pain in rest. Of all 165 male runners, 27 (16.4%) visited a general practitioner because of their running injury and 40 (24.2%) visited a physiotherapist (218 times in total). Persistent complaints at 3 month follow-up were associated with nonmusculoskeletal comorbidities [odds ratio (OR), 3.23; confidence interval (CI), 1.24-8.43], and calf injuries (OR, 0.37; CI, 0.13-1.05). CONCLUSIONS: One quarter of the runners had persistent complaints of their marathon-related running injury at 3 month follow-up. However, the clinical and social consequences of the injuries seem to be relatively mild. Nonmusculoskeletal comorbidities at baseline are related to poor recovery, whereas recovery is also location specific.