Studies concerning some acute biological changes after endovenous administration of 1 g l-carnitine, in elite athletes

Physiologie. Oct-Dec 1987;24(4):231-4.


Acute effects of l-carnitine (vials of 1 g endovenous) were recorded in a group of elite athletes (17 swimmers) by a prospective double-blind placebo-controlled trial and cross over. Significant changes were registered after l-carnitine injection, compared to placebo, for FFA, triglycerides, lactic acid after exercise, evoked muscular potential, 90 to 120 minutes after injection. The authors explain these changes by the increase of free carnitine, which permits a larger quantity of FFA to enter the mitochondria and to be more extensively used as energy source.

Publication types

  • Clinical Trial
  • Comparative Study
  • Controlled Clinical Trial

MeSH terms

  • Adolescent
  • Adult
  • Carnitine / administration & dosage*
  • Double-Blind Method
  • Female
  • Humans
  • Injections, Intravenous
  • Membrane Potentials / drug effects
  • Muscles / drug effects
  • Physical Exertion / drug effects
  • Random Allocation
  • Sports*
  • Swimming
  • Time Factors


  • Carnitine