Welcome to a high-energy ab workout that will leave you feeling strong and sculpted. High-intensity interval training (HIIT) is the perfect blend of cardio and strength training. When you focus on ...

Challenge your core and cardio skills with this 10-minute HIIT workout led by fitness trainer Natalie White. She's joined by class members Luisa Fonseca and Madisyn Maniff for this high-energy cardio ...

Looking for a quick ab workout to fire up your core? This seven-minute intense ab challenge targets your lower abs with no equipment. To find out for myself, I unrolled my yoga mat and gave it a go ...

Ab workouts are always in high demand—they’re the subject of more than 1.8 million Google searches every month. These mid-body muscles are responsible for the famous six-pack shape and form part of ...

High-intensity interval training is one of the best ways to pack a lot of exercise into a short period of time. HIIT workouts are so efficient because they alternate short bursts of very intense ...

A new study suggests that HIIT workouts may help preserve lean mass in older adults compared to moderate exercise—but changes ...

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 ...

If you’re looking to add some kick to your workout and save time while doing it, it's probably time to try a 15-minute HIIT workout. “HIIT, or high-intensity interval training, essentially means you ...

HIIT workouts are meant to be fast and furious. They rely on explosive exercises like burpees, high knees, kettlebell swings, sprints, and other moves that spike your heart rate and make you sweat — ...

The best HIIT exercises vary from person to person. Building a routine suited to your individual preferences, abilities, and fitness goals is the key to success. High intensity interval training (HIIT ...

Confession: Despite my lengthy career as a fitness journalist and being well-versed in the health benefits of a strong core, I have not been consistent with training my abs for a while. (Hi, holidays ...