I used to train with a group that spanned the spectrum from milers to marathoners, all at a similar competitive level. For large stretches of autumn and winter, we could all train together in some ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." RUNNERS CAN EASILY fall into a basic routine for their workouts: Lace up, hit the pavement, then cruise ...

HIIT can help improve speed and power, but longer, steadier workouts that you can do regularly, like swimming and rowing, are better for cardio endurance.

For many people aiming to burn a lot of calories, high-intensity interval training is the way to go. Also known as HIIT, these popular workouts feature bursts of intense activity, such as squats or ...

Interval running exercises are basically one of the best ways to improve your speed. These workouts allow you to practice running fast for a brief period of time, then recover and repeat. Over time, ...

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.

As HIIT's popularity soars, sprint interval training, or SIT, is doing its best to catch up. Can shorter, harder, faster deliver better results? As the popularity of HIIT continues to soar, sprint ...

Researchers delved into muscles to figure out why intensive bursts of exercise are as effective as long term workouts ...

The American Heart Association recommends that adults get "at least 150 minutes per week of moderate-intensity aerobic activity or 75 minutes per week of vigorous aerobic activity" — or a combination ...

Exercise is known to benefit heart health. High-intensity interval training (HIIT) that combines aerobic exercise with ...

Steady-state cardio may be more helpful for beginners looking to manage their weight, while HIIT is a great way to boost aerobic fitness quickly.