Rest as needed after completing the two exercises in each set. Repeat three times. Dumbbell bench press 10 or push-ups 20 Dumbbell rows 10/arm Leg-Core Combo: The legs and core can be quickly done ...

"Exercises like push-ups, pull-ups, and squats improve everything from our strength and flexibility to our coordination, balance, and agility," Michaels says. Calisthenics exercises also use your ...