|The purpose of this study was to determine the effects of 14-week treadmill gait training??changed isokinetic strength of lower extremities of hemiplegic patients who had a stroke previously. In this study,??10 subjects were randomly divided into 2 treadmill training conditions (i.e., either incline and decline training??condition; 5 subjects for each condition) and the training program had 3 stages (i.e., treadmill training, detraining,??and retraining; 6, 4, and 4 weeks, respectively). To explore the changes in isokinetic strength, we measured the??changes in the subjects' isokinetic strength variables of lower extremities such as flexion of knee joint in affected side??at 30°/sec, peak torque during extension, ratio of peak torque/body weight (BW), average power, ratio of??average power/BW, total work, and ratio of total work/BW. All these variables were measured four times. The flexion of??knee in affected lower limb, peak torque during extension, ratio of peak torque/BW, average power, ratio of??average power/BW, total work, and ratio of total work/BW were increased as the training was progressed,??especially in the decline gait training group. In conclusion the decline treadmill gait training was better than the incline??treadmill gait training in improving isokinetic strength of hemiplegic patients after a stroke. During the detraining??session, the effects of the training session was decreased. Therefore, the patients need a steady gait training program. If??we use both training methods simultaneously, however, it will be the best way to prevent additional diseases and??recurrence of strokes.