Hydrotherapy is the use of an underwater treadmill to strengthen and re-educate a patient’s limbs. The buoyancy of the water allows for the strengthening of patient’s muscles with little or no pressure on painful joints. The warmth of the water helps increase the flexibility, mobility and contractility of muscles while also increasing circulation. This tool is often used for return post-surgical patient to exercise sooner, strengthening of supportive muscles surrounding painful/arthritic joints and weight loss. The ability to control the speed, water resistance and depth allows therapists to improve a patient’s range of motion, weight bearing status and fitness. This is especially helpful in patients with neurologic conditions that are unable to walk or stand without assistance and patients with muscle loss from during surgical recovery or a chronic injury.