They just know HIIT can ramp up your heart rate, fast, and it's used everywhere from boutique studio classes to hardcore gyms ...

The routine below will give you a 10-minute workout. You can repeat from the beginning as many times as you’d like for a longer workout! 10-minute outdoor HIIT walk ...

YOUR 4-WEEK WORKOUT SCHEDULE You can do these workouts whenever you want, but here’s the best way to tackle the next four weeks for peak calorie-blasting and muscle-building potential. WEEK 1 ...

10-minute HIIT walking routine Just add intervals to your walk, and you turn it into a HIIT workout! Try this routine, which also includes optional strength-training a few times a week.

The Women's Health+ 7-Day Ultimate HIIT Challenge will boost your metabolism and build strength. Access the full program schedule and workout videos here.

And while this may be true, the best reason to incorporate HIIT into your exercise routine, according to Ms. Wilson, is to improve performance, whether you’re a competitive athlete or not ...

If you’re looking for an exercise routine that will deliver big returns with a small time investment, consider high intensity interval training, or HIIT. Just two or three 30-minute sessions per ...

These workouts are the perfect format when you want to break a sweat without spending an hour at the gym, but Garcia notes there’s often confusion around how long a HIIT routine should be.

Update, July 16, 2025: We checked all product prices and availability and tested a wide range of new options. Our No. 1 pick for the best online workout program changed due to Centr's increased ...