Fact checked by Jennifer Klump From smarter nighttime snacks to getting enough protein without supplements, we want to offer ...

From high knees to squat jumps, these five at-home interval workouts can help improve your VO2 max – a key measure of heart ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. The more you work out, ...

If you're a fitness fiend or working to improve your health, you're probably always looking for ways to run faster and farther, train harder and push your limits. You might even already track a number ...

Your Vo2 max is a measure of the maximum amount of oxygen your body can use during exercise. The best way to increase your Vo2 max is to exercise near your maximum heart rate. Vo2 max is a measure of ...

VO2 max, the measure of how much oxygen the body consumes during exercise, has become a ubiquitous tool for professional athletes, but health experts increasingly say it's a measurement worthy of ...

A.V. Hill was a 4:45 miler and already had a Nobel Prize for work in muscle physiology when he and Lupton began studying VO2 max. The experiments involved subjects running around Hill’s back garden in ...