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TEngo entendido que para definicion va bien a la hora de mantener musculatura. Es cierto??
en una revista leí que los suplementos que nunca fallaban eran: glutamina, bcaa, creatina, proteina, entonces porque se dice que la glutamina no sirve? :S
estais equivocados, la glutamina es un suplemento necesaria tanto como para definir y subir peso... un saludo¡
bueno que yo tambien busco glutamina XD
Vale, ¿y porque razones estamos equivocados si puede saberse?
Vale, ¿y porque razones estamos equivocados si puede saberse?
Como me gusta este tio xD con respeto.
+1, ¿ por qué dices eso ?
por que es consiste en el 60% de los aminoacidos que hay en el musculo, por lo tanto que lo gastamos al entrenar, si se toma glutamina antes de entrenar evita el catabolismo muscular y favorece a la sintesis proteica y muchos mas que favorecen.....
de lo que estoy estudiando( entrenador personal)y en el libro se menciona cinco suplementos imprescindibles en volumen y perdida de peso( este con otros suplementos), la glutamina esta entre estos suples... yo no se vosotros pero me fiare de los libros sobre culturismo testados cientificamente y demostrados. y por supuesto que no hay que fiarse de la revistas pero en los libros para ser entrenador personal como que no jejeje un saludo¡
por que es consiste en el 60% de los aminoacidos que hay en el musculo, por lo tanto que lo gastamos al entrenar, si se toma glutamina antes de entrenar evita el catabolismo muscular y favorece a la sintesis proteica y muchos mas que favorecen.....
de lo que estoy estudiando( entrenador personal)y en el libro se menciona cinco suplementos imprescindibles en volumen y perdida de peso( este con otros suplementos), la glutamina esta entre estos suples... yo no se vosotros pero me fiare de los libros sobre culturismo testados cientificamente y demostrados. y por supuesto que no hay que fiarse de la revistas pero en los libros para ser entrenador personal como que no jejeje un saludo¡
J Strength Cond Res. 2002 Feb;16(1):157-60.
The effects of high-dose glutamine ingestion on weightlifting performance.
Antonio J, Sanders MS, Kalman D, Woodgate D, Street C.
Sports Science Laboratory, University of Delaware, Newark, Delaware 19716, USA.
The purpose of this study was to determine if high-dose glutamine ingestion affected weightlifting performance. In a double-blind, placebo-controlled, crossover study, 6 resistance-trained men (mean +/- SE: age, 21.5 +/- 0.3 years; weight, 76.5 +/- 2.8 kg(-1)) performed weightlifting exercises after the ingestion of glutamine or glycine (0.3 g x kg(-1)) mixed with calorie-free fruit juice or placebo (calorie-free fruit juice only). Each subject underwent each of the 3 treatments in a randomized order. One hour after ingestion, subjects performed 4 total sets of exercise to momentary muscular failure (2 sets of leg presses at 200% of body weight, 2 sets of bench presses at 100% of body weight). There were no differences in the average number of maximal repetitions performed in the leg press or bench press exercises among the 3 groups. These data indicate that the short-term ingestion of glutamine does not enhance weightlifting performance in resistance-trained men.
PMID: 11834123 [PubMed - indexed for MEDLINE]
Appl Physiol Nutr Metab. 2006 Oct;31(5):518-29.
Addition of glutamine to essential amino acids and carbohydrate does not enhance anabolism in young human males following exercise.
Wilkinson SB, Kim PL, Armstrong D, Phillips SM.
Exercise Metabolism Research Group, Department of Kinesiology, McMaster University, 1280 Main St. West, Hamilton, ON L8S 4K1, Canada.
We examined the effect of a post-exercise oral carbohydrate (CHO, 1 g.kg(-1).h(-1)) and essential amino acid (EAA, 9.25 g) solution containing glutamine (0.3 g/kg BW; GLN trial) versus an isoenergetic CHO-EAA solution without glutamine (control, CON trial) on muscle glycogen resynthesis and whole-body protein turnover following 90 min of cycling at 65% VO2 peak. Over the course of 3 h of recovery, muscle biopsies were taken to measure glycogen resynthesis and mixed muscle protein synthesis (MPS), by incorporation of [ring-2H5] phenylalanine. Infusion of [1-13C] leucine was used to measure whole-body protein turnover. Exercise resulted in a significant decrease in muscle glycogen (p < 0.05) with similar declines in each trial. Glycogen resynthesis following 3 h of recovery indicated no difference in total accumulation or rate of repletion. Leucine oxidation increased 2.5 fold (p < 0.05) during exercise, returned to resting levels immediately post-exercise,and was again elevated at 3 h post-exercise (p < 0.05). Leucine flux, an index of whole-body protein breakdown rate, was reduced during exercise, but increased to resting levels immediately post-exercise, and was further increased at 3 h post-exercise (p < 0.05), but only during the CON trial. Exercise resulted in a marked suppression of whole-body protein synthesis (50% of rest; p < 0.05), which was restored post-exercise; however, the addition of glutamine did not affect whole-body protein synthesis post-exercise. The rate of MPS was not different between trials. The addition of glutamine to a CHO + EAA beverage had no effect on post-exercise muscle glycogen resynthesis or muscle protein synthesis, but may suppress a rise in whole-body proteolysis during the later stages of recovery.
PMID: 17111006 [PubMed - indexed for MEDLINE]