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  • Blog
  • by BMC
  • April 22, 2015

    A massage after vigorous exercise unquestionably feels good, and it seems to reduce pain and help muscles recover. Many people  both athletes and health professionals – have long contended it eases inflammation, improves blood flow and reduces muscle tightness. But until now no one has understood why massage has this apparently beneficial effect.

    Now researchers have found what happens to muscles when a masseur goes to work on them.

    Their experiment required having people exercise to exhaustion and undergo five incisions in their legs in order to obtain muscle tissue for analysis. Despite the hurdles, the scientists still managed to find 11 brave young male volunteers. The study was published in the Feb. 1 issue of Science Translational Medicine.

    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.

    They found that massage reduced the production of compounds called cytokines, which play a critical role in inflammation. Massage also stimulated mitochondria, the tiny powerhouses inside cells that convert glucose into the energy essential for cell function and repair. “The bottom line is that there appears to be a suppression of pathways in inflammation and an increase in mitochondrial biogenesis,” helping the muscle adapt to the demands of increased exercise, said the senior author, Dr. Mark A. Tarnopolsky.

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