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Jumping jacks are a convenient, no-equipment, full-body plyometric exercise. They boost cardiovascular endurance, burn calories, and strengthen bones by combining aerobic activity with resistance movements that engage your arms, legs, and core muscles.
Add traditional jumping jacks to your workout or try variations, such as step jacks or squat jacks, based on your fitness level. For beginners, a great starting point is 3 sets of 10 to 15 repetitions daily.