This course will cover the topics of homeostasis, bioenergetics, cell metabolism, and hormone responses as they relate to exercise. Additional topics to be covered are acute and chronic responses of the immune, nervous, skeletal, muscular, circulatory, and respiratory systems to exercise. Also included are acid-based balance, temperature regulation, and the physiology of training effect on various performance factors. Prerequisite: PEXS 300, Corequisite: PEXS 400. Spring.