HIIT

“I am in the best physical shape I have ever been in," said one fan of high-intensity interval training.
These quick routines will help whittle your middle.
Want to get the weight loss benefits of increased mitochondrial function without potentially damaging your metabolism? The
Burpees: Jump straight up with your hands in the air. Then, put your hands on the ground and jump your feet back to a high
HIIT (high-intensity interval training) has been the most buzzed-about sweat method for a while, but there's a new approach gaining momentum: LISS, or low-intensity, steady-state cardio. OK, it's not really new (hello, elliptical!). So why the sudden spotlight?
"It's a little bit of step, a little bit of weights. It's great music. It's fun. It's hard but it's fun."
This efficient exercise will get you fit, but it's really intense.
Before you sign up for HIIT on ClassPass, read this.
This energizing high-intensity interval training (HIIT) routine and super motivating playlist, designed by a master fitness trainer, will invigorate you—even if you're not a morning person.