In this experiment 0.3 ml of Amphetamine Sulphate solution (1 mg/ml) was injected to 30 male albino rats (rattus sp strain Wistar) and 0.3 ml of aquadest to another 30 male rats as control group. Training was performed in an hour duration on a rolling treadmill 3 times a week in 8 weeks. Five days followings the last training all rats were rested by loaded swimming endurance. Comparative t-test…