Vigorous exercise causes tiny tears in muscle fibers, leading to an immune reaction — inflammation — as the body gets to work repairing the injured cells. So the researchers screened the tissue from the massaged and unmassaged legs to compare their repair processes and find out what difference massage would make.
A strained adductor muscle or tendon can be a tenacious, enduring injury, causing a persistent pain in the inner thigh. If a person feels pain high up near the groin, he or she has injured the tendon of one of the four primary adductor muscles: the gracilis, adductor longus, adductor brevis, or adductor Magnus. If the pain is toward the mid-thigh, the muscle fibers are injured. Pain in both places indicates damage to both tendon and muscle fibers.
Hamstring injuries are a common problem that affects a large number of athletes. These injuries can be slow to heal with a very high rate of recurrence or re-injury. Hamstring injuries are often associated with sports that require fast acceleration and deceleration such as running (intervals), football, soccer, handball and rugby.