Abstract: Objective To investigate the effect of isokinetic training on stiff knees after fracture arrest. Methods 38 fracture patients were divided into observation group (n=19) and control group (n=19) by the medical number. Both 2 groups received the Chinese herbs fumigation and joint mobilization. Besides, the observation group received the isokinetic training, while the control group received the instrument training. The range of motion (ROM), maximum peak torque (PT), peak torque/body weight (PT/BW), average power (AP), and hamstrings/quadriceps (H/Q) were tested before and 16 weeks after training. Results The flexion, straightness and flexion radian became significantly better after training. The flexion and the increase of the flexion radian were significantly better in observation group than in control group after training. All indexes of the isokinetic test significantly improved after training (P<0.001) except H/Q (P>0.05). ROM、PT、PT/BW and AP of the knees joint were significantly better in the observation group than in the control group (P<0.001) after training, while there was no significant difference in H/Q between 2 groups (P>0.05) after training. Conclusion Isokinetic training can promote recovery of stiff knees of femur fracture.

Key words: isokinetic traning, femur, fracture, immobilization, stiff knees, joint mobilization