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Isokinetic And Isometric Contraction Of The Quadriceps And Hamstring Muscles In Normal Young Adults, Lin-Fen Hsieh, Jin-Shin Lai, I-Nan Lien

Rehabilitation Practice and Science

Summary In order to establish normal data of the isokinetic (IK) and isometric (IM) contraction of the quadriceps (Q) and hamstring (H) muscles, 22 normal young men and 24 normal young women were tested with a Cybex II Isokinetic Dynamometer at the speed of 0,5,10,20,and 30 rpm (0 rpm= isometric contraction). The IM contraction was tested at 45, 60, and 90 degrees of knee flexion in the Q muscles, and at 30, 45, and 60 degrees in the H muscles. Peak IK and IM torque of Q and H were obtained from both sexes. The peak IK torque values were …