Effect of difference in running speed on foot strike patters and the movement of the swing leg

Abstract

The purpose of this study was to clarify the effect of the foot strike patterns when the running speed changes and the swing leg movement, and to examine the relationship between the foot strike patterns and the swing leg movement. Participants were 11 male general university students. Seven levels of subjective effort were set, and each set subjective effort was sprinted once. Leg movements and foot strike patterns were investigated using a digital camera and an F-scan sensor sheet inserted into the shoe. As a result, the magnitude of the relative running speed was considered to vary from subject to subject. Foot strike patterns were many Rear Foot Strike regardless of the speed of running, but when the running speed increased, some people were Fore Foot Strike. The subjects in this study had a small relative movement of the knees and toes from the time of swinging to the time of landing even if the running speed changed, and the relative position of the toes in the vertical direction at the time of swinging was upward that it was thought that this led to the Rear Foot Strike. On the other hand, some subjects increase the relative movement of the knees and toes from the time of swinging to the time of landing when the running speed increases, and the relative position of the toes in the vertical direction at the time of swinging was down that it was thought that this led to the Fore Foot Strike.