There’s a lot of talk in the exercise world about high intensity interval training (HIIT) lately, which is exactly what it sounds like — alternating episodes of exercise with periods of less intensive ...

Interval training’s stock has soared in recent years. Is it any wonder, when it promises to deliver impressive health and fitness perks in a shorter time frame than other workouts? Sessions can be fun ...

Most solid training plans include a weekly speed workout, often in the form of intervals. But the length of those intervals usually depends on your race distance, training goals, and fitness level.

I am 41 years of age and have been walking regularly. I was told by my colleague to try interval training to add challenge to my workouts. I have a treadmill at home which I use sometimes. What is ...