This workout consists of four-minute bursts of exercise, done at 85 to 95% of your maximum heart rate. Afterwards, you get ...

The CAROL spin bike squeezes 40 minutes worth of exercise into 8 minutes. Here's why the American Academy of Exercise approves of the new equipment. When the ACE enlisted Lance Dalleck, PhD, and his ...

Throughout my ultra-endurance sports career, I pushed my body to extremes that were dangerous and unhealthy; I took my love of running and my passion for Ironman triathlons too far and almost died ...

Few would disagree that cardio, also called aerobic exercise, is good for your health. Of the 10 most common chronic diseases, seven are "favorably influenced by regular physical activity," according ...

I first tried the Norwegian 4x4 workout a year ago, and since then, it has become a staple of my fitness routine. I don't do it every week (some folks do), but it's a workout I keep returning to ...