This drill will help you strengthen those quads, glutes and hamstrings. Keep your chest upright, and drive your weight through your heels. If you want more of a challenge, try to get your thighs parallel to the floor! Download the NTC app here: http://go.nike.com/7gm10pa
when is this app coming to the android users? i really want to use it but I have an android os on my phone.
luckyinlife83 3 months ago 6