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 ...

Walking becomes cardio when your heart rate rises, and the simplest way to make that happen is by picking up speed. Aim for a brisk pace that makes you breathe harder but still allows short ...

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 ...

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.