They're simple, but effective, and they'll have you burning calories for hours after they're done.

Even if you’re logging strong miles, age-related muscle loss can creep in. The fix is surprisingly straightforward.

TRY a 15-minute rowing routine: Start with a 5-minute warm-up, rowing at a slow, consistent pace. Then move up to a moderate ...

Want to know how you can run and keep your knees pain-free for life? Science (and these 70-year-old women!) may have the answers.

Boost your metabolism, mood and motivation with this one month HIIT and walking workout plan, diet tips and spring recipes and an easy mindfulness exercise.

Cardio experts and personal trainers explain how to choose the best workout for you ...

Work smarter, not harder, with this energy-efficient exercise.

But how many of us have gone out and said “I’m doing a fartlek today” and actually followed through with it? Probably a lot less than the number of people who talk about doing them. The original idea ...

It's the most popular drill of the NFL scouting combine in Indianapolis. Here are 10 names who could run the fastest 40-yard dash.