Maximum potential with physical therapy is reached when the patient has achieved their goals and the therapist determines that further progress is unlikely. The patient may experience a plateau in their progress despite continued therapy. Objective measures such as strength, range of motion, and functional ability can help determine if maximum potential has been reached. The patient should be encouraged to continue their home exercise program and seek further treatment if necessary. It is important to communicate with the therapist and follow their recommendations regarding the continuation or discontinuation of therapy.