(a) Physical therapy means examining, evaluating, and testing a person with mechanical, physiological, and developmental movement-related impairments, functional limitations, and disabilities or other health and movement-related conditions in order to develop a plan of therapeutic intervention and to initiate treatment. Physical therapy is the art and science of physical or corrective rehabilitation or of physical or corrective treatment of a bodily or mental condition of a person by the use of the physical, chemical, and other properties of heat, light, water, electricity, sound, massage, and active, passive, and resistive exercise, and shall include physical therapy evaluation, treatment planning, instruction, and consultative services. The practice of physical therapy includes the promotion and maintenance of physical fitness to enhance the bodily movement related health and wellness of individuals through the use of physical therapy interventions. The use of roentgen rays and radioactive materials, for diagnostic and therapeutic purposes, and the use of electricity for surgical purposes, including cauterization, are not authorized under the term “physical therapy” as used in this chapter, and a license issued pursuant to this chapter does not authorize the diagnosis of disease.