06-28-2012, 12:22 AM
(This post was last modified: 07-01-2012, 05:17 PM by vickiarevalo.)
What you do is sprint as hard as you can for 30 seconds straight. And by sprint I mean SPRINT. Run as hard as you possibly can for 30 seconds straight. Then after the 30 seconds, just walk for about 2-3 minutes. Repeat this 4-7 times for a workout. I guarantee your stamina will significantly increase within 2 weeks since this workout puts such a large strain on your cardiovascular system
Vicki R. Arevalo
Vicki R. Arevalo