What Is Hiit And How To Add Hiit To Your Fitness Routine
What exactly is HIIT? HIIT—which stands for high-intensity interval training—is, simply put, a type of workout that alternates between hard (high-intensity) and easy work. “During this workout, you spike the heart rate to near max levels of exertion (70 to 90 percent of max heart rate) followed by a brief period of activity recovery (55 to 65 percent max heart rate) or complete rest,” says Mike Donavanik, certified strength and conditioning specialist and celebrity trainer in Los Angeles, and the founder and CEO of Sweat Factor....