Sprinting requires three things: strong muscles in your legs and arms. A good cardiovascular system to help transport oxygen to the muscle groups that are doing all the work and some endurance so your muscles don’t cut out after that first, initial...

Sprinting requires three things: strong muscles in your legs and arms. A good cardiovascular system to help transport oxygen to the muscle groups that are doing all the work and some endurance so your muscles don’t cut out after that first, initial...

Original article and pictures take https://fitsaudi.com site