RT Book, Section A1 Starkey, Chad SR Print(0) ID 1163447678 T1 Thermal Modalities T2 Therapeutic Modalities, 4e YR 2013 FD 2013 PB F. A. Davis Company PP New York, NY SN 9780803625938 LK fadavisat.mhmedical.com/content.aspx?aid=1163447678 RD 2024/04/19 AB This chapter presents information regarding those modalities that rely on a gradient-based heat exchange that alters the body's physiology. The chapter consists of two sections, cold and heat. Each section describes the physics, physiological effects, and evidence that support or question their use. Use of specific thermal modalities and their unique effects are described in the next chapter.