DOMS Literature Review

Delayed onset muscle soreness (DOMS) is a phenomenon associated with increased physical exertion.1 evident as disruption of normal banding patterns of skeletal muscle and broadening or complete disruption of sarcomere Z lines.2The disruption leads to release of CK, which contributes to strength deficits.3 It is well-established that many types of physical activity can cause delayed soreness, while origins of the soreness and accompanying symptoms are complex,2,3 Unaccustomed exercise, especially eccentric contractions, cause muscle damage. The damage is characterized by decreased muscle force production, ultrastructural disruption, inflammation, increased proteolytic activity and increased serum creatine kinase (CK) activity.2,3Typically

Though lactic acid is not a component of the process. The perceptions of pain and soreness from intense eccentric exercise are not related to lactate buildup. If DOMS is due to accumulation of lactate in the muscles, there would be more incidences of DOMS after concentric exercise than that of eccentric exercise. Szymanski’s review notes that blood and muscle lactate levels rise considerably during intense eccentric and concentric exercise, however values for blood and muscle lactate return to normal within 30-60 minutes post exercise and concentric exercise produces two-thirds more lactate than eccentric exercise.1 Exercise induced muscle soreness can be of two types- acute or delayed onset. Acute muscle soreness starts during exercise and may last up to 4-6 hours before

During the last decade, whole-body vibration (WBV) has been introduced for enhancing the force-generating capacity in humans based upon the application of sinusoidal vibrations to the body.5 Vibration exercise is a forced oscillation, in which energy transfer from an actuator (i.e. the vibration device) to a resonator (i.e. the human body, or parts of it). Application of vibration stimulation in sports use the principle that when vibration is applied to distal muscle it is transmitted to more proximal muscles helps improve athletes’ performance. Vibration therapy is a form of muscle training that is largely independent of the motivation of the patient. Oxygen consumption increases during a vibration session; the higher the vibration, the greater the oxygen consumption. Vibration results in an increased range of motion for the concerned joint.3 There is considerable evidence from studies that whole body vibration exercise increases physical strength, improves muscle performance, and improves