It's a proven way to improve VO2 max.

For patients with heart failure and cardiovascular disease, high intensity interval training has a greater positive effect on cardiorespiratory fitness than moderate intensity continuous training.

Get a complete full-body workout at home with this HIIT routine! Combine strength training and cardio to burn calories, tone ...

This is a parallettes workout for basic strength and flexibility. All you need is a decent set of parallettes and you can use ...

Interval training is great for boosting cardiovascular endurance and promoting overall fitness. Our fitness expert, Judd NeSmith, NASM-CPT, PES and founder of Serious Fitness, explains interval ...

There’s a reason Hollywood’s hottest can’t stop raving about this intense workout technique; it carves out results like no ...

The workout below is for Day 13 of the Good Vibes Workout, a four-week workout plan. It’s pretty great on its own, but you can also check out the full program right here or browse the calendar here.

If you had to pick the better runner — a sprinter or a marathoner — the answer would depend on the type of race. In a 200-meter race, the sprinter will have an edge over the marathoner, but if it ...

A bonus? It’s ideal for people with little time to exercise.

Cardio exercises help to improve your cardiovascular health by increasing oxygen flow and strengthening the heart and lungs.

Ethier cited a paper by one of his researchers, Daniel Plotkin, comparing the effect of different types of cardio on fat loss ...