To check off cardio, too (and send your metabolism into even higher gear), add one of these five-minute bursts to your five-move session, suggests Davidson. “Make it the worst five minutes of your life,” he says. The results: less fat, more definition.
Do More Reps
Load a barbell with a weight that’s about 70 percent of what you can lift one time, then choose one of the five movements and perform as many reps as you can—without breaking form.
On a rowing machine, row as many meters as possible in 5 minutes. With each workout, attempt to increase that distance by one percent.
Sprint up a Hill
Set a treadmill to a slight incline, about 3 percent. Run as fast as you can for 30 seconds, aiming for 10 miles per hour. Jog for 30 seconds at 5 mph. Repeat for 5 minutes.