Unfortunately, as we approach middle age our tolerance for exercise goes down. This is (at least partially) due to increased free radical formation and decreases in anabolic hormone production/activity associated with aging. However, new evidence shows that LCLT can substantially buffer these aging effects. In a study published in the August 2010 issue of Metabolism, scientists from the University of Connecticut (USA) and University of Jyvaskyla (Finland) had middle-aged men and women consume 2g of LCLT per day for 3 weeks and 3 days. After 3 weeks, subjects completed a heavy leg exercise protocol to induce muscle damage and soreness. In men and women, post-exercise blood markers of purine metabolism, free radical formation, muscle tissue damage, and muscle soreness were significantly decreased.
Ho JY, Kraemer WJ, Volek JS, Fragala MS, Thomas GA, Dunn-Lewis C, Coday M, Häkkinen K, Maresh CM. L-Carnitine L-tartrate supplementation favorably affects biochemical markers of recovery from physical exertion in middle-aged men and women. Metabolism. 2010 Aug;59(8):1190-9.