It doesn’t get much more efficient than this classic do-anywhere exercise, one of the best total-body moves out there since it targets all the major muscle groups. But you have to be sure your form is correct: Keep your elbows tucked as close to your body as possible, tighten your glutes to prevent your hips from sagging, and when you lower toward the floor, engage your upper muscles to fight gravity and avoid plopping down. See how many you can do properly in a minute, and aim to improve that score each time you do them. Source: Declan Condron, an exercise physiologist and the co-founder of
PumpOne
