HIIT (high-intensity interval training) routines are always tough, but outdoor HIIT running workouts are on another level. "Performing high intensity intervals will require you to dig deep and find ...

Leg day doesn't have to last a long time — just ask ACE-certified personal trainer and Under Armour trainer Ariel Belgrave, who created this 20-minute lower-body HIIT workout. The session is part of ...

If you’re hunting for an efficient, effective and equipment-free workout you can do at home, you’re in luck. This workout contains 15 exercises, and you’ll do each one for 40 seconds followed by a ...

ST. LOUIS – Arthur Shivers, fitness expert from Generation 3 Fitness, shares a 20-minute High Intensity Interval Training (HIIT) workout. For more information, visit Generation3Fitness.com or call ...

Forget hours running on the treadmill or the elliptical machine at the gym — if you’re short on time and looking for a way to torch calories, you’re better off doing a quick HIIT workout. You don’t ...

Need a break from burpees, jump squats, and mountain climbers? This 20-minute HIIT boxing workout is a novel way to raise your BPMs. “Today, I’m going to be bringing you guys a 20-minute, HIIT ...

Workout trends come and go, but when it comes to the biggest bang for your buck, high intensity interval training, or HIIT, has staying power. HIIT’s specific origins are uncertain; some say it dates ...

In this most recent episode of Good Moves with Pilates and fitness instructor, Traci Copeland takes viewers through a full-body High-Intensity Interval Training (HIIT) workout that offers you a heart ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Want an exercise program that helps you work out smarter, not harder? You've found it. The Women's ...

Join instructor Sina Riemann for a 20-minute HIIT Pilates class. Riemann incorporates elements of pilates, strength training, and high-intensity cardio for a short but effective workout that's perfect ...