Hydrotherapy is a form of physical therapy in warm water. A physical therapist is accompanying the patient during the whole training, but there is always the possibility of exercising alone.
Hydrotherapy can be beneficial because it uses the low stress on the joints, the temperature of the water, the frictional resistance and the buoyancy force to gently train the whole body.
Because of all those advantages, it is frequently used in orthopedics for rheumatoid conditions, arthrosis, diseases of the spine and neurological disorders.
Additional, the warm water relaxes the muscles and increases the muscle metabolism, while training especially the deep, stabilizing muscles without putting to much strain on your spine.
Items, like pool noodles, are used as floatation devices.
Note: The warm water can increase symptoms of dysautonomia in EDS patients.