I’m a personal trainer—if you need some quick and low-impact cardio, I recommend you start with this 15-minute workout H igh-intensity interval training (HIIT) delivers impressive cardiovascular ...

Since I’m a bit of a cardio lover, I didn’t anticipate a low-impact HIIT routine could raise my heart rate to an average of 138 beats per minute—a lot higher than I thought it would be.

Created by Nike trainer Naomi Heffernan, this 14-minute, 7-move HIIT workout is designed to get your heart rate up, burn calories, and build strength without the need for any equipment.

Too many HIIT workouts a week can slow your fitness progress and lead to injury and burnout, according to a personal trainer for a national fitness studio.

In TODAY.com's Expert Tip of the Day, a trainer reveals three common scenarios when the benefits of sleep outweigh those from ...

Use this exercise mat from Lululemon for every HIIT, strength training or stretching session — it provides the perfect balance of slip-resistance and support.

Personal trainer Sam Quinn, of Nuffield Health, told The Telegraph that adults must be in a 500-calorie deficit from their maintenance calorie consumption in order to lose weight.

These are the main benefits of high intensity interval training exercise and tips for getting the most of your HIIT session, according to trainers.

Many people find it hard to maintain an exercise routine on their own. Here’s how to select a personal trainer who works best with your personality and lifestyle.

The absolute best training shoes for weightlifting, HIIT and more, tested and reviewed Personal trainers are begging you to stop lifting weights in running sneakers — here’s why.