ILIOTIBIAL BAND STRAIN DURING TWO RUNNING SPEED CONDITIONS FOCUSED ON THE HIP JOINT ANGLE

Abstract

The purpose of the study is to mitigate Iliotibial band (ITB) syndrome injury by understanding how much stress runners’ knees experience as running speed is varied. Subjects included 10 uninjured university male long-distance runners. Subjects ran under two conditions: high speed (18.0 km/h) and low speed (14.4 km/h). ITB strain was calculated by Opensim model during the stance phase. ITB strain at sliding before foot release phase were 1.44±0.61% in high-speed condition and 2.22±1.10% in low-speed condition and low-speed condition was higher than high-speed condition (p < 0.05). ITB strain was higher sliding before foot release than sliding after foot contact (p < 0.05). We have proven that ITB strain increases and pain occurs during the latter half of the standing phase compared to the initial half when ground impact occurs.