No equipment needed ...

High-intensity interval training, or HIIT, is a great way to get in a fast, effective workout. This quick routine is helpful ...

Interval walking alternates slow and fast paces to boost intensity. People of all fitness levels can benefit from interval walking. Gradually increase the frequency and intensity of your interval ...

High intensity interval training (HIIT) may be the optimal exercise for reducing body fat while maintaining muscle mass in ...

Lack of time is often the main reason people don’t exercise regularly. But a type of interval workout recently popularised by ...

High-intensity interval training has surprising benefits for fitness and physical power, but don’t stay seated the rest of the day. By Gretchen Reynolds A mere four seconds of all-out exercise, ...

High intensity interval training (HIIT) may be the optimal exercise for reducing body fat while maintaining muscle mass in older adults, according to ...

See how you stack up, then complete this interval rowing workout to improve your time ...