Abstract
This study investigated the relationship between foot type and ankle sprain incidence. In a prospective cohort study using the FPI, 68 adult male and female indoor football (Futsal) players were measured and their feet were classified according to foot posture index (FPI) as neutral, supinated and pronated. They were followed over 6 month as a one competition season and at the end, any injuries at the ankle during this period were detected. There was no significant association between FPI score (considering the total FPI score and its six components) and occurrence of ankle sprain. Also, no association was existed between gender, age, height, weight, BMI, duration of professional exercise, dominant foot and occurrence of ankle sprain. In this study, the history of previous ankle sprain was the only significant predictor of the occurrence of ankle sprain in the follow-up period. Participants with the positive history of previous ankle sprain were at higher risk of developing new ankle sprain (OR=6.02, 95% CI: (1.93, 18.84), p=0.002). There was no significant association between FPI score and occurrence of ankle sprain. There was scarce of supinated foot in the study so evaluation of relationship between supinated feet and ankle sprain was not applicable.
Highlights
Due to prevalence of ankle ligament injury in football players, this athlete group may face various biomechanical, functional and financial hazards
Result: There was no significant association between foot posture index (FPI) score and occurrence of ankle sprain
Participants with the positive history of previous ankle sprain were at higher risk of developing new ankle sprain (OR=6.02, 95% 95% confidence interval (CI): (1.93, 18.84), p=0.002)
Summary
This study is comprised of 68 subjects (136 feet). Table 2 shows the characteristics of the participants. (%) Female Male Age, years Height, cm Weight, kg BMI Duration of professional exercise Dominant foot, no.(%) Right foot Left foot Positive history of ankle sprain, no. There was no significant association between FPI score and the log odds of occurrence of ankle sprain (p=0.60, Table 4). No association was existed between gender, age, height, weight, BMI, duration of professional exercise, dominant foot and the log odds of occurrence of ankle sprain (Table 3). The history of previous ankle sprain was the only significant predictor of the occurrence of ankle sprain in the follow-up period. Participants with the positive history of previous ankle sprain were at higher risk of developing new ankle sprain (OR=6.02, 95% CI: (1.93, 18.84), p=0.002)
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