parvane bazipoor; seyed sadreddin shojaeddin; ali shahhoseini; iraj abdollahi
Volume 4, Issue 1 , Winter 2017, , Pages 20-25
Background: Compared to the individuals with a normal arch structure, thosewith high or low arch can be at an increased risk of overuse injuries. The riskof overuse injury among athletes ...
Background: Compared to the individuals with a normal arch structure, thosewith high or low arch can be at an increased risk of overuse injuries. The riskof overuse injury among athletes is high due, in part, to the repeated loadingof the lower extremities. The current study aimed to determine if foot type(high-arched or normal) results in differences in plantar pressure during twobadminton-specific movements (right-reverse lunge and right-lateral lunge).Methods: Twenty badminton players (10 with normal feet and 10 with higharchedfeet) completed five trials in both right-reverse and right-lateral lunge,while in-shoe pressure data were collected at 100 Hz. The peak pressure andmean pressure were analyzed among the subjects for five major anatomicalregions of the foot, using the independent t test in SPSS version 20. The foot typewas determined by the foot posture index (FPI) (α<0.05).Results: Results showed that the plantar pressure characteristics of normal andhigh-arched feet were different; such that in high-arched feet, as compared tonormal subjects, there were significantly fewer pressure strikes in the medial(P=0.010) and lateral (P=0.002) mid-foot in right-reverse lunge and this wassignificantly higher in forefoot (P=0.003) and toes (P=0.010). However, thepeak (P=0.157) and mean (P=0.104) pressure in the heel was higher but notsignificant. In the right- lateral lunge, we found statistically lower peak pressurestroke for the lateral mid-foot (P=0.010) and forefoot (P=0.011); however, themean pressure was lower in the lateral (P=0.010) and medial (P=0.040) mid-footand forefoot (P=0.120), although it was not significant in the forefoot.Conclusion: Results showed that the medial longitudinal arch of the foot mightcause pressure differences in the feet among the players with normal and higharchedfeet. As the results demonstrated, in high-arched feet, there are some regionswhere plantar pressure is higher and some where it is lower. Therefore, in orderto prevent the badminton players from suffering probable foot injuries, attentionshould be paid to the compatibility of the insole/shoe and the medial longitudinalarch and other areas of the foot that suffer more pressures than normal subjects..