The characteristics of the

recreational runners are prese

The characteristics of the

recreational runners are presented in Table 1. During the 12-week follow-up, 84 RRIs were registered by 60 (31%) of the 191 recreational runners analysed. The incidence of RRI in this 12-week follow-up was 10 RRIs per 1000 hours of running exposure. Of the injured runners, 70% (42/60) developed one RRI, 22% (13/60) developed two injuries, 7% (4/60) developed three injuries, and 2% (1/60) developed Lapatinib cell line four injuries. Of the runners that presented two or more RRIs in this study, 28% (5/18) represented recurrences. The mean duration of the RRIs registered in this study was 3.4 weeks (SD 2.3), an average of 3.9 running sessions per runner (SD 3.3) were missed due to RRIs, and the mean pain intensity of these injuries was 5.6 points (SD 2.3) on a 10-point scale. The type of RRI and anatomic region results are fully described in Table 2. Table 3 describes the results of the univariate GEE analysis. The variables with a p < 0.20 in this analysis were included in the multivariate GEE analysis, which is presented in Table 4. The training characteristics that were identified as risk factors for RRI in the final model were: previous RRI (OR 1.88, 95% CI 1.01 to 3.51), duration of training session (OR 1.01, 95% CI 1.00 this website to 1.02),

and speed training (OR 1.46, 95% CI 1.02 to 2.10). Interval training was identified as the protective factor against the development of RRIs (OR 0.61, 95% CI 0.43 to 0.88). The results of this study are Libraries relevant because they provide new information about the incidence of RRIs and modifiable predictive factors for RRI in recreational runners. The identification of the RRI incidence in recreational runners is important to monitor interventions PD184352 (CI-1040) that can influence the rate of RRI in this population. In addition, the identification of modifiable risk factors is important because this may lead to modifications in the injury risk profile and the information can be used in

the development of preventive interventions. The incidence of RRI found in this study (31%) was lower than those previously reported: 79% at six months follow-up (Lun et al 2004) and 51% at 12 months follow-up (Macera et al 1989) in recreational runners not enrolled or training to participate in races. This may be explained by these previous studies using longer follow-up and different RRI definitions. While these previous studies considered a reduction of the running volume due to injury enough to define a RRI (Lun et al 2004, Macera et al 1989), our study used a more rigorous criterion (ie, missing at least one training session due to RRI). Despite this, these results are worrying because the incidence of RRI in recreational runners may increase from 31% in three months (as we found in this study) to 51% in one year (Macera et al 1989).

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