Delayed ONset Muscle Soreness.
What Is Delayed Onset Muscle Soreness?
Delayed onset muscle soreness (DOMS) after a workout is quite common and quite annoying, particularly if you are just beginning an exercise program or changing activities. For the new exerciser who wakes up one day and goes a three mile walk, followed by push-ups and sit-ups, there is bound to be some muscle pain and soreness the next day or two. This is a normal response to unusual exertion and is part of an adaptation process that leads to greater stamina and strength as the muscles recover and build. The soreness is generally at its worst within the first 2 days following the activity and subsides over the next few days.
Delayed onset muscle soreness occurs hours after the exercise is over.
What Causes Delayed Onset Muscle Soreness?
DOMS is thought to be a result of microscopic tearing of the muscle fibers. The amount of tearing (and soreness) depends on how hard and how long you exercise and what type of exercise you do. Activities that require muscles to forcefully contract while they are lengthening, (eccentric contractions), seem to cause the most soreness. You use eccentric contractions when you descend stairs, run downhill, lower a weight, or perform the downward motion of squats and push-ups. In addition to muscle tearing, swelling can occur in and around a muscle, which can also cause soreness hours later.