Manipulation is a physical therapy technique in which a licensed therapist manually moves a patient's joints beyond their normal range of motion. This may be done to help relieve pain, improve joint mobility, or enhance muscle function. The therapist uses their hands to gently stretch and manipulate the muscles and tissues around a joint, helping the joint to move smoothly and without pain. This form of therapy is often used to treat a wide range of conditions including lower back pain, knee pain, foot pain, shoulder pain, and neck pain. However, it's important to note that this treatment should be carried out by a trained and qualified physical therapist, as improper use could potentially cause harm.