For fitness enthusiasts who need a little cardio variety, HIIT (or high-intensity interval training) has long been a popular ...

This article was medically reviewed by Joey Thurman, CSCS, CPT, FNS, a Chicago-based fitness expert and creator of Fast Results program. HIIT workouts ... will take about 20 minutes (although ...

This 20-minute ‘lazy’ workout from fitness trainer Maddie Lymburner, who goes by MadFit on YouTube, is designed so you can do the whole thing without standing up or using any equipment, with every ...

It's not like being on the treadmill ... with HIIT, “getting endorphins will happen.” Keep scrolling for 21 great high-intensity workout options to try that range from five to 45 minutes ...

We've put together the best cardio HIIT workouts from running to bodyweight ... fast running and slow walking for a total of 15-20 minutes. Walk the curved portions of the track, and run the ...

We could all use another HIIT workout in the rotation. This one’ll empty your tank in 20 minutes flat, and only requires dumbbells. These fat-burning exercises make for a fast, effective workout.

“On the treadmill ... minute HIIT. Think you can keep going? Feel free to add more rounds in – but this is a pretty tough session with the two rounds alone. Want more strength-training workouts?