People who complain they have no time to exercise may soon need another excuse. Some experts say intense exercise sessions could help people squeeze an entire week's workout into less than an hour.

The fitness boot camp craze is evolving. It's no longer just the crack-of-dawn, sergeant-led calisthenics classes. Mommy Bootie Camp in Kensington, Md., packs a lot of punch, with a focus on interval ...

NEW ORLEANS — Cardiovascular exercise (CV), and other such classifications of fitness endeavors, has extensive research to support the American College of Sports Medicine’s broad definition as ...

Sprint interval training, or SIT, is super trendy right now. It’s a great way to improve your running speed and to get in a hard interval workout, and I’ll explain exactly how. But I also need to ...

If your regular speedwork sessions are feeling stale, it might be time to drop the hammer. Most interval sessions follow a ...

Determining whether high-intensity interval training (HIIT) is an appropriate form of exercise for the average person has been hotly debated for years. But for one UBC Okanagan researcher, there's not ...

A longitudinal study by University of Queensland researchers has found high-intensity interval exercise improves brain function in older adults for up to 5 years. Emeritus Professor Perry Bartlett and ...

Want to get stronger on the bike this spring? These are the interval workouts that build fitness fast without burning you out ...

Please provide your email address to receive an email when new articles are posted on . Short-interval high-intensity exercise improved peak VO 2 more vs. moderate-intensity training after stroke. A ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. I first tried the ...