Effect of early follicular phase of menstrual cycle on hip flexion-extension isokinetic parameters in sedentary female students.

Abstract

Researchers conducted this observational study on sixty young females to detect the effect of the early follicular phase of the menstrual cycle on hip muscle performance. The Biodex Isokinetic dynamometer 4 pro was used. The authors used a dependent t-test and detected a statistically significant increase in the mean values of all hip flexion and extension isokinetic parameters at angular velocities 90°/sec and 180°/sec (p < 0.05) post-menstruation in comparison to the early follicular phase. The AGON/ANTAG ratio and hip ROM had a statistically significant reduction at the angular velocity 90°/sec (p = 0.003, p = 0.041 respectively) post-menstruation in comparison to the early follicular phase, while they showed no statistically significant change at the angular velocity 180°/sec (p = 0.070, p = 0.236 respectively). The authors through these results try to direct physiotherapists and physical education instructors to schedule training and activities for sedentary females according to their menstrual cycles to avoid any risk of injury.