But ensure that you don't skip the next phase of your exercise which is just as important as the run. Make sure that you do some cool-down stretches after your run. It is important that you stretch out your thighs, hamstring, calf, buttock, lower leptitox does it work back and hip muscles properly, hold each stretch for at least 10 seconds. 6. DO OTHER EXERCISES ON DAYS YOU DON'T RUN Remember to train your body with exercises that boost your endurance, stamina and strength. These other exercise routines will improve your running capacity and build up your overall fitness.