Take the entire Science of Exercise course online at https://goo.gl/S5wYjx. You will learn more about the human body’s response to exercise, fitness, weight loss, and a healthy lifestyle. There are several factors that cause muscle soreness during and after exercise. In this video Professor Robert Mazzeo from the University of Colorado at Boulder discusses the causes of cramps, spasm, soreness, and stiffness, as well as how to adapt your fitness plan to these factors.