The C.A.M. Report
Complementary and Alternative Medicine: Fair, Balanced, and to the Point
  • About this web log

    This blog is intended as an objective and dispassionate source of information on the latest CAM research. Since my background is in pharmacy and allopathic medicine, I view all CAM as advancing through the development pipeline to eventually become integrated into mainstream medical practice. Some will succeed while others fail. But all are treated fairly here.

  • About the author

    John Russo, Jr., PharmD, is president of The MedCom Resource, Inc. Previously, he was senior vice president of medical communications at www.Vicus.com, a complementary and alternative medicine website.

  • Common sense considerations

    The material on this weblog is for informational purposes. It is not medical advice or counsel. Be smart, consult your health professional before using CAM.

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    Effects of branch-chain amino acids during exercise training

    Researchers at Otsuka Pharmaceutical Co., Ltd., in Saga, Japan studied the effects on muscle soreness, muscle damage and inflammation during an intensive training program.

    First, the details.

    • 12 long-distance runners participated in 2 intensive 3-day training periods and were randomly assigned to a drink during each training period.
      • A drink containing branched-chain amino acid (BCAA 0.8% in a 3.5% carbohydrate solution; 2,500 mL/day)
      • An isocaloric placebo drink
    • All participants completed the same training program (total running distance: males: 86 km [53 miles], females: 64 km [40 miles]), and ate the same meals during the training period.
    • Body muscle soreness and fatigue were measured in the morning before and during the training period using a Visual Analogue Scale.
    • Blood levels of creatine kinase (CK), lactate dehydrogenase (LDH), and granulocyte elastase (GEL) were measured as indicators of muscle damage and inflammation before and after the training period.

    And, the results.

    • Muscle soreness and fatigue during the BCAA training period were significantly lower than the placebo trial (-32% and -24%, respectively).
    • CK, LDH, and GEL blood levels after the BCAA training program were significantly lower than those in the placebo group (-21%, -6%, and -15%, respectively).

    The bottom line?

    The authors concluded, “BCAA supplementation during an intensive training program effectively reduces the muscle soreness and fatigue sensation, and that the perceived changes could be attributed to the attenuation of muscle damage and inflammation.”

    2/21/10 21:36 JR

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