راشدی, حسین

گروه تربیت بدنی و علوم ورزشی، دانشکده علوم انسانی، دانشگاه آزاد اسلامی واحد همدان، همدان، ایران.

[ 1 ] - تأثیر مدت زمان انقباض و استراحت در تمرینات PNF بر دامنه حرکتی و قدرت عضلات اکستنسور ران

Objective: The aim of the present study was to compare the effect of ratios of contraction- Relaxation on the muscle strength and range of motion of hip joint in PNF exercises. Methods: Thirty nine nonathletic male students (Mean±SD; age, 13±1.2 years; body mass, 55±9.8 kg) were assigned .Three groups designated as I, II and III groups. The ratios of contraction to relax...