This study examined the relationship between velocity loss and differences in the intensity of squat exercise. Twenty-two male college students who were exercising actively performed repetitive lifting during squatting exercise within 5 different velocity ranges. It was found that the slope of the velocity decrease was large in the medium-intensity to high-intensity range. At low intensities, the decrease in velocity was moderate. It was also clear that the degree of fatigue varied greatly depending on the number of repetitions and the duration of exercise at the same rate of velocity loss. In addition, higher exerted power was observed at low and medium intensities. The minimum power was approximately 70% of the maximum peak power. This suggests that in velocity-based training, the acceptable range of the velocity reduction rate relative to intensity may differ in order to control excessive fatigue and obtain the desired training effect.