Calisthenics is a form of exercise where you use the weight of your own body to increase strength, mobility, flexibility, agility, and endurance. The word calisthenics comes from the ancient Greek words kalos, which means "beauty", and sthenos, meaning "strength".

It requires no equipment, but can include high bars, parallel bars, parallettes, and olympic rings. Calisthenic techniques include variations of push ups, pull ups, bar to bar transitions, leaping, climbing, and gymnastic like feats of strength demonstrated by controlled transitions. The BDK Calisthenics style combines classic body weight training with animal locomotion for mobility, martial arts for stamina, and yoga for flexibility.