Calisthenics are exercises consisting of a variety of gross motor movements—running, standing, grasping, pushing, etc.—often performed rhythmically and generally without equipment or apparatus. They are, in essence, body-weight training. They are intended to increase body strength, body fitness, and flexibility, through movements such as pulling or pushing oneself up, bending, jumping, or swinging, using only one's body weight for resistance; usually conducted in concert with stretches.
When performed vigorously and with variety, calisthenics can provide the benefits of muscular and aerobic conditioning, in addition to improving psychomotor skills such as balance, agility and coordination.