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n International SportMed Journal - Determination of the foot strike pattern in runners belonging to a running team : original research article
Background : The number of runners has been increasing as well as the number of injuries related to this sport. Knowing the foot strike patterns of the runners has become necessary since there is a possible relationship between the landing pattern of the foot against the ground during running and the increased incidence of musculoskeletal injuries in runners.
Research question : The objective of this study was to determine the distribution of the foot strike patterns in recreational runners during typical training running pace.
Type of study : Cross-sectional study.
Methods : This is a cross-sectional study conducted with recreational runners who practice with running coach. A high-speed camera (image acquisition frequency of 250 Hz) was used to analyse the foot strike pattern and photocells were used to register the runners' speed. The foot strike patterns were classified into three categories: rearfoot, midfoot and forefoot. The description of the foot strike pattern and the characteristics of participants were done through descriptive statistics. Intra-class and inter-class confiability was evaluated by agreement percentage.
Results : Fifty-three runners, with an average speed of 12.6 km/h, were evaluated, and 98.1% of the runners showed a rearfoot strike pattern. Only one runner touched the ground with the midfoot first, and none were forefoot strikers. The evaluation method for determining foot strike pattern showed an agreement percentage of 96.2% and 100% intra-class and inter-class confiability, respectively.
Conclusion : The results of the study showed that the adult recreational runners who train with a one running coach, almost exclusively demonstrate a rearfoot strike pattern during running.
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