Primal Shred

Keep in mind that when you do a sprint, both feet are simultaneously in the air for many moments. Therefore, running is basically a type of jump training. You can make sprints depending on distance or time; but, in any case, try to be short and intense so that you can get the best results for increased strength. Here you have a simple routine, to be carried out at any time, which will help you to strengthen your leg training by jumping (plyometrics.

http://www.testedsupplement.com/primal-shred/