Calisthenics (HANDSTAND PUSH)

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.

Urban calisthenics are a form of street workout; calisthenics groups perform exercise routines in urban areas. Individuals and groups train to be able to perform advanced calisthenics skills such as muscle-ups, barspins, and both front and back levers.

Sports teams and military units often perform leader-directed group calisthenics as a form of synchronized physical training (often including a customized "call and response" routine) to increase group cohesion and discipline. Calisthenics are also popular as a component of physical education in primary and secondary schools over much of the globe.

In addition to general fitness, calisthenic exercises are often used as baseline physical evaluations for many military organizations, such as the U.S. Army Physical Fitness Test and the U.S.M.C Physical Fitness Test.

Push-up

Performed face down on the floor, palms against floor under the shoulders, toes curled upwards against the floor. The arms are used to lift the body while maintaining a straight line from head to heel. The arms of the subject should go from fully extended in the high position to nearly fully flexed in the low position, while the subject makes sure to avoid resting on the floor. Resting is only done in the high position of the exercise. Chest, shoulders, and triceps are trained with this exercise. By furthering the range of motion, what is often called a push up, by pushing the shoulders downwards at the top the serratus anterior comes further into play.