Τα Αμινοξέα Προάγουν Την Αντίσταση Στην Κόπωση

[Musclemar]

Σε αυτη τη νεα ερευνα που δημοσιευτηκε στο School of Physical Education and Sport στο πανεπιστημιο του Σαο Παολο στη Βραζιλια, δειχνει οτι προσθετοντας πρωτεινη σε μορφη BCAA's σε sports drinks βοηθα θετικα την αντισταση στην κοπωση και επαυξανει την οξειδωση των λιπιδιων σε αθλητες με εξαντλημενο γλυκογονο.

-----------------

Brached Chain Amino Acid Supplementation enhances exercise capacity and lipid oxidation during endurance exercise after muscle glycogen depletion. Gualano AB, at al. Sports Med Phys Fitness. 2011 Mar;51(1):82-8. University of Sao Paulo, Sao Paulo, SP, Brazil
Gualano AB, Bozza T, Lopes De Campos P, Roschel H, Dos Santos Costa A, Luiz Marquezi M, Benatti F, Herbert Lancha Junior A.
School of Physical Education and Sport, University of Sao Paulo, Sao Paulo, SP, Brazil - gualano@usp.br.

Abstract

AIM: It has been demonstrated that branched-chain amino acids (BCAA) transaminase activation occurs simultaneously with exercise-induced muscle glycogen reduction, suggesting that BCAA supplementation might play an energetic role in this condition. This study aimed to test whether BCAA supplementation enhances exercise capacity and lipid oxidation in glycogen-depleted subjects.

METHODS: Using a double-blind cross-over design, volunteers (N.=7) were randomly assigned to either the BCAA (300 mg . kg . day -1) or the placebo (maltodextrine) for 3 days. On the second day, subjects were submitted to an exercise-induced glycogen depletion protocol. They then performed an exhaustive exercise test on the third day, after which time to exhaustion, respiratory exchange ratio (RER), plasma glucose, free fatty acids (FFA), blood ketones and lactate were determined. BCAA supplementation promoted a greater resistance to fatigue when compared to the placebo (+17.2%). Moreover, subjects supplemented with BCAA showed reduced RER and higher plasma glucose levels during the exhaustive exercise test.

CONCLUSION: In conclusion, BCAA supplementation increases resistance to fatigue and enhances lipid oxidation during exercise in glycogen-depleted subjects.



http://www.ncbi.nlm.nih.gov/pubmed/21297567

[PowerBuilderi]

Σα να λεμε ¨παρε BCAA το πρωι και τρεχα¨ :)
Για να δουμε, για να δουμε...