Plenty of research touts the importance of cardiorespiratory fitness (CRF)—also known as cardio fitness, cardiovascular endurance, and aerobic fitness—as a health marker, as well as an athletic ...

Low-intensity cardio—sometimes called LISS or “zone 2”—is a previously-underrated form of exercise. It’s finally coming back ...

When it comes to exercise, most people think of popular cardio activities such as running, swimming or cycling. While each of these are great ways of getting your heart rate up, toning your muscles ...

Fitness programs can be built around just about anything. CrossFit is based on the philosophy that constantly varied movements performed with moderate intensity improve physical competence. Yoga is ...

Lack of regular physical exercise is recognized by the American Heart Association as one of the key heart disease risk factors, and it is assumed that cardio exercise (walking, jogging, swimming, etc.

Here's the verdict, as research shows one may give you a stronger edge. Plus, says this specialist MD, here's how much of it ...

High-intensity interval training is one of the best ways to pack a lot of exercise into a short period of time. HIIT workouts ...

All cardio training tends to get lumped together in one big bucket. There’s the misconception that whether you’re taking a SoulCycle class, going on an easy run, spending some time on the elliptical ...

When you enter the gym, which way should you head first? Toward the treadmills and spin studio to get your sweat on with a cardio session? Or toward the free weights and strength-training machines to ...

In TODAY.com's Expert Tip of the Day, discover the type of exercise that will help you achieve a trimmer midsection.

VO₂ max reflects how efficiently your body uses oxygen. Discover how it is measured, why it predicts health and longevity, ...