Effect of reproductive hormones variation during menstrual cycle on hip abductor and adductor muscles performance in college students

摘要: Background The hip abductors and adductors play an important role in the stability of knee joints injury risk. Menstrual cycle is associated with hormones fluctuations that may affect functions muscles ligaments increase risk injury. However, their effect on performance still unknown, which be a step developing conditioning programs to reduce Objectives This study aimed examine variation during menstrual abductor adductor sedentary college students. Patients methods Twenty-four students completed protocol. Their age BMI ranged from 19 25 years 25–29.9 kg/m2, respectively. Levels estradiol, progesterone, luteinizing hormone, follicle-stimulating hormone were measured. Biodex system 3-isokinetic dynamometer was used measure isokinetic parameters including peak torque, maximum work, total average power, work repetition number, fatigue percentage, angle acceleration time, deceleration time. Measurements taken early follicular (1–3 days) mid-luteal phases (21–23 days), detected using basal body temperature method. Results There significant increases estradiol (P=0.0001), progesterone (P=0.002), torque (P=0.03) (P=0.04), (P=0.01), (P=0.01) (P=0.02), power (P=0.0.01) (P=0.02) phase compared phase. Conclusions Abductor strength changes surging levels normal need considered strengthening exercises for avoid