Group Fitness Instructor

Answer: B - Research suggests that DOMS is primarily caused by an excessive eccentric load placed on the muscles and connective tissue. An eccentric load occurs when a muscle is lengthening as it contracts such as when decelerating. A properly designed exercise class will incorporate both concentric and eccentric exercises into the routine, although it is wise to limit the frequency of eccentric loads during the beginning phases of exercise. In order to prevent overuse or injury, class members should be educated on the difference between soreness from exercise and pain from injury.