After performing physical exercise, resulting in leg pain, you should no longer do leg exercises at this time. Any of the larger muscles in the human body, after systematic exercise will produce a certain amount of damage, this damage is benign, after stimulation will only gradually repair, and the formation of physiological hypertrophy. But the muscle also exists a certain fatigue period, for the quadriceps muscle such a relatively large muscle, the recovery time is at least 48 hours – 72 hours, when the exercise after the leg pain should not continue to exercise, you can exercise other parts, when 72 hours later you can continue to exercise the legs.