Can a 12-minute workout really boost fitness, torch fat, and improve metabolic health? I gave REHIT a go to find out if it ...

They also do 15-minute HIIT workouts in the form of what they call Cycle, Blast, and Thunder. “So, Blast is our total body Keiser bike. It’s no joke. It has good resistance.

The results showed that HIIT burned more calories than the other three workouts, suggesting that you can burn more calories with a 30-minute HIIT workout than doing steady-state cardio in the same ...

15-Minute HIIT Workout: 5 exercises total 3 sets per exercise 40 seconds on, 20-second rest Equipment: None Workout: 3 rounds for 15 minutes, 40 seconds full-out, 20-second break Plank thrust, hop ...

The recommendation for HIIT is no more than three times a week, with the workout ranging from 10-30 minutes. Start slowly and progress the exercises and intensity as you get stronger.

Les Mills Sprint applies HIIT principles to spinning for days when you're riding solo. Try this simple 15-minute workout you can do at the gym.