Combined methods for treating a patient using time-varying magnetic field are described. The methods include generating a time-varying magnetic field and applying the magnetic field to muscle fibers, neuromuscular plates, or peripheral nerves innervating muscle fibers within the body region of the patient such that a muscle is caused to contract. The treatment methods include generating optical waves and applying the optical waves to the body region of the patient to heat a target biological structure of the patient. The methods include providing an applicator housing a coil to generate the time-varying magnetic field and an optical waves generating device to generate the optical waves and attaching the applicator to the patient via a belt.
