How to Improve Your VO2 Max
by Rachel Fairbank from Lifehacker on (#64ZRK)

Setting a new personal max is a great way to chart your progress toward your fitness goals-so what's the easiest way to do that? One useful step is to improve VO2 max, which is a measure of how much oxygen your body can take in and use during exercise. The more oxygen your body can put to use while you work out, the...