WNC2
29-02-2012, 10:58:09
Effects of carbohydrates-BCAAs-caffeine ingestion on performance and neuromuscular function during a 2-h treadmill run: a randomized, double-blind, cross-over placebo-controlled study
Sébastien L Peltier1*, Lucile Vincent2, Guillaume Y Millet3, Pascal Sirvent4, Jean-Benoît Morin3, Michel Guerraz5, André Geyssant3, Jean-François Lescuyer1, Léonard Feasson3 and Laurent Messonnier2
* Corresponding author: Sébastien L Peltier sebastien.peltier@laboratoire-lescuyer.com
Author Affiliations
1 Laboratoire Lescuyer, Aytré, France
2 Exercise Physiology Laboratory, Department of Sport Sciences, University of Savoie, F-73376 Le Bourget du Lac Cedex France
3 Université de Lyon, F-42023, Saint-Etienne, France
4 Clermont Université, Université Blaise Pascal, EA 3533, Laboratoire des Adaptations Métaboliques à l'Exercice en conditions Physiologiques et Pathologiques (AME2P), BP 80026, F-63171 Aubière Cedex, France
5 Laboratory of Psychology and Neurocognition (UMR 5105), University of Savoie, 73000 Chambéry, France
Background
Carbohydrates (CHOs), branched-chain amino acids (BCAAs) and caffeine are known to improve running performance. However, no information is available on the effects of a combination of these ingredients on performance and neuromuscular function during running
Conclusions
This study has shown for the first time that ingestion of a combination of CHOs (68.6 g.L-1), BCAAs (4 g.L-1) and caffeine (75 mg.L-1) immediately before and during a 2 h running exercise in standardized laboratory conditions significantly increased treadmill running performance by about 2% in trained subjects. Moreover, ingestion of a drink associating these components during a standardized 2 h running exercise maintained glycemia and significantly decreased RPE, central fatigue and an index of peripheral fatigue as compared to the placebo condition..
studio completo in attachment.
Sébastien L Peltier1*, Lucile Vincent2, Guillaume Y Millet3, Pascal Sirvent4, Jean-Benoît Morin3, Michel Guerraz5, André Geyssant3, Jean-François Lescuyer1, Léonard Feasson3 and Laurent Messonnier2
* Corresponding author: Sébastien L Peltier sebastien.peltier@laboratoire-lescuyer.com
Author Affiliations
1 Laboratoire Lescuyer, Aytré, France
2 Exercise Physiology Laboratory, Department of Sport Sciences, University of Savoie, F-73376 Le Bourget du Lac Cedex France
3 Université de Lyon, F-42023, Saint-Etienne, France
4 Clermont Université, Université Blaise Pascal, EA 3533, Laboratoire des Adaptations Métaboliques à l'Exercice en conditions Physiologiques et Pathologiques (AME2P), BP 80026, F-63171 Aubière Cedex, France
5 Laboratory of Psychology and Neurocognition (UMR 5105), University of Savoie, 73000 Chambéry, France
Background
Carbohydrates (CHOs), branched-chain amino acids (BCAAs) and caffeine are known to improve running performance. However, no information is available on the effects of a combination of these ingredients on performance and neuromuscular function during running
Conclusions
This study has shown for the first time that ingestion of a combination of CHOs (68.6 g.L-1), BCAAs (4 g.L-1) and caffeine (75 mg.L-1) immediately before and during a 2 h running exercise in standardized laboratory conditions significantly increased treadmill running performance by about 2% in trained subjects. Moreover, ingestion of a drink associating these components during a standardized 2 h running exercise maintained glycemia and significantly decreased RPE, central fatigue and an index of peripheral fatigue as compared to the placebo condition..
studio completo in attachment.