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

This is a challenging calisthenics/run workout with active rest in the form of pushups. Do this as a fast 100-meter run (near ...

When people say they need to get faster at running, it can mean multiple types of running workouts required to build a base of endurance, a set mile pace and sprinting as fast as possible. The ...