High-intensity interval training involves working at a near-to-maximum heart rate level, alternating periods of working out and rest by doing short bursts of exercise at maximum output, followed by a short period of recovery. HIIT is all about getting in a quick and efficient workout. Not sure where to begin? YouTube has plenty of free HIIT videos you can do at home.
If you need a little extra encouragement, invest in some chic new workout clothes that make you look good and feel strong. Adidas by Stella McCartney offers up a wide selection of engineered performance sportswear perfect for a fierce HIIT workout.
No time to get to the gym? You don't need fancy equipment to squeeze in a workout anytime, anywhere. There's no excuse to be lazy with bodyweight training. Celebrity trainer Simone de la Rue shared with Women's Health how clients like Jennifer Garner and Resse Witherspoon get creative with their fitness routines that target muscle groups one at a time, ramping up into a full-body workout as an entire circuit.
