I Googled and got this.

A rehabilitation specialist is a medical or psychosocial professional who assists patients in recovery from physical injuries or weaknesses, or mental illness. The goal of his or her intervention is to have the patient return to normal or nearly normal functioning in his or her daily activities. Physical therapists, occupational therapists, psychiatrists, social workers, and vocational counselors are all rehabilitation specialists. Respiratory therapists and speech-language pathologists also do rehabilitative work with patients.

After an injury, or for physical strengthening, a physical therapist helps a patient regain mobility and range of motion through exercise and physical training activities. The emphasis is on restoring optimal neuromuscular and skeletal functioning. He or she may also order equipment for the patient to use at home as an adjunct to in-office treatment. An occupational therapist promotes patient adaptation and independence by teaching optimal conservation of physical energy. He or she may also guide patients in activities that promote fine motor skills.