The Cardio Load calculation, previously only on on the Pixel Watch 3, has now rolled out to all recent Fitbit models (and the other Pixel Watches) without a Fitbit Premium subscription. So what is it, ...

Can you go nonstop? Take this 5-drill strength test from a CPT after 55, and find out.

As you prepare for challenging basic training or special ops selections, you must build a strong foundation of leg durability, strength, flexibility and mobility through a balanced workout program.

Aerobic capacity, which is often referred to as VO2 max, is the maximum amount of oxygen your body can use while exercising. VO2 max is an important way to measure your overall fitness and see how ...

Patients with abnormal diastolic function (when the heart is relaxed and expanded) in the left ventricle of the heart have a substantially lower maximum capacity for exercise, according to a new study ...