Calisthenics are exercises that use one's own body weight for resistance and involve large muscle groups. Calisthenics aim to improve strength, fitness, flexibility, coordination, and posture . Some calisthenics skills are advanced and require more balance and agility, such as muscle-ups and flips.
Weight training is an organized exercise in which muscles of the body are forced to contract under tension using weights, body weight or other devices in order to stimulate growth, strength, power, and endurance. Weight training is also called "resistance training" and "strength training."
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