If you're actively working towards building a higher VO2 max, you're probably well aware that interval training is a requirement to achieve such feats. But it's also only one piece of the puzzle. VO2 ...

The Norwegian 4x4 workout has been touted as the ultimate longevity-boosting workout, credited for significantly improving aerobic fitness scores over just eight weeks. Popular among runners and ...

Steady state cardio gets a bad rep. With interval training taking the spotlight, and ignorant discussions of "burning muscle" plaguing the blogosphere, many people have completely cut steady state ...

The workout below is for Day 16 of the Just Enough Workout, a four-week workout plan. Today’s routine is pretty great on its own, but you can also check out the full program right here or browse the ...

Add Yahoo as a preferred source to see more of our stories on Google. If you're actively working towards building a higher VO2 max, you're probably well aware that interval training is a requirement ...