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arginina como post entreno no le veo la utilidad, esa toma mejor cambiar a la mañana en ayunas y la leucina creo que 3gr es muy poco.
3 grs de leucina está mas que bien.. si la cantidad estandar de una cucharada de te chica son 3 grs de polvo de bcaas leu , vali y isoleu.....
y eso es post entreno
no estarás confundiendo 3 grs con 3 mg ???
arginina como post entreno no le veo la utilidad, esa toma mejor cambiar a la mañana en ayunas y la leucina creo que 3gr es muy poco.
que quieres lograr con la suplementacion de arginina y/o leucina?
3 grs de leucina está mas que bien.. si la cantidad estandar de una cucharada de te chica son 3 grs de polvo de bcaas leu , vali y isoleu.....
y eso es post entreno
no estarás confundiendo 3 grs con 3 mg ???
No effect of short-term arginine supplementation on nitric oxide production, metabolism and performance in intermittent exercise in athletes.
Arginine supplementation has been shown to alleviate endothelial dysfunction and improve exercise performance through increasing nitric oxide production in patients with cardiopulmonary diseases. In addition, arginine supplementation could decrease accumulations of lactate and ammonia, metabolites involved in development of muscular fatigue. The aim of this study was to investigate the effect of short-term arginine supplementation on performance in intermittent anaerobic exercise and the underlying mechanism in well-trained male athletes. Ten elite male college judo athletes participated with a randomized crossover, placebo-controlled design. The subjects consumed 6 g/day arginine (ARG trial) or placebo (CON trial) for 3 days then performed an intermittent anaerobic exercise test on a cycle ergometer. Blood samples were collected before supplementation, before and during exercise and 0, 3, 6, 10, 30 and 60 min after exercise. ARG trial had significantly higher arginine concentrations than CON trial at the same time point before, during and after exercise. In both trials, nitrate and nitrite concentration was significantly higher during and 6 min after exercise comparing to the basal concentration. The increase in nitrate and nitrite concentration during exercise in both trials was parallel to the increase in plasma citrulline concentrations. There was no significant difference between the 2 trials in plasma nitrate and nitrite, lactate and ammonia concentrations and peak and average power in the exercise. The results of this study suggested that short-term arginine supplementation had no effect on nitric oxide production, lactate and ammonia metabolism and performance in intermittent anaerobic exercise in well-trained male athletes.
Effects of dietary L-arginine intake on cardiorespiratory and metabolic adaptation in athletes.
To assess the effect of diet enrichment with L-arginine or supplementation at high doses on physiological adaptation during exercise, 9 athletes followed 3 different diets, each over 3 consecutive days, with a wash-out period of 4 d between training sessions: control diet (CD), 5.5 +/- 0.3 g/d of L-arginine; Diet 1 (rich in L-arginine food), 9.0 +/- 1.1 g/d of L-arginine; and Diet 2 (the same as CD but including an oral supplement of 15 g/d), 20.5 +/- 0.3 g/d of L-arginine. Plasma nitrate levels of each participant were determined on the day after each treatment. Participants performed a submaximal treadmill test (initial speed 10-11 km/hr, work increments 1 km/hr every 4 min until 85-90% VO2max, and passive recovery periods of 2 min). Oxygen uptake and heart rate were monitored throughout the test. Blood lactate concentration ([La-]b) was determined at the end of each stage. Repeated-measures ANOVA and paired Student's t tests were used to compare the various physiological parameters between diets. The level of significance was set at p < .05. [La-]b showed a significant effect at the 5-min time point between CD and Diet 2 (CD 3.0 +/- 0.5 mM, Diet 2 2.5 +/- 0.5 mM, p = .03), but this tendency was not found at higher exercise intensities. No significant differences were observed in any of the cardiorespiratory or plasma nitrate levels. In conclusion, dietary L-arginine intake on the days preceding the test does not improve physiological parameters during exercise.
L-arginine supplementation in peripheral arterial disease: no benefit and possible harm.
BACKGROUND: L-arginine is the precursor of endothelium-derived nitric oxide, an endogenous vasodilator. L-arginine supplementation improves vascular reactivity and functional capacity in peripheral arterial disease (PAD) in small, short-term studies. We aimed to determine the effects of long-term administration of L-arginine on vascular reactivity and functional capacity in patients with PAD. METHODS AND RESULTS: The Nitric Oxide in Peripheral Arterial Insufficiency (NO-PAIN) study was a randomized clinical trial of oral L-arginine (3 g/d) versus placebo for 6 months in 133 subjects with intermittent claudication due to PAD in a single-center setting. The primary end point was the change at 6 months in the absolute claudication distance as assessed by the Skinner-Gardner treadmill protocol. L-arginine supplementation significantly increased plasma L-arginine levels. However, measures of nitric oxide availability (including flow-mediated vasodilation, vascular compliance, plasma and urinary nitrogen oxides, and plasma citrulline formation) were reduced or not improved compared with placebo. Although absolute claudication distance improved in both L-arginine- and placebo-treated patients, the improvement in the L-arginine-treated group was significantly less than that in the placebo group (28.3% versus 11.5%; P=0.024). CONCLUSIONS: In patients with PAD, long-term administration of L-arginine does not increase nitric oxide synthesis or improve vascular reactivity. Furthermore, the expected placebo effect observed in studies of functional capacity was attenuated in the L-arginine-treated group. As opposed to its short-term administration, long-term administration of L-arginine is not useful in patients with intermittent claudication and PAD.
en que te basas para recomendar 3gr de leucina, que yo sepa no hay ningun estudio concluyente acerca de las ventajas/efectos de esta y mucho menos de las dosis recomendadas.
me baso en las dosis standar que estan en los potes de bcaas, por ej en el de la on
eso de estudios concluyentes y el material que bajas de internet OYE GEOTOP deja de comprar todo lo que pasan por internet...te estas haciendo un bodoque del porte de un buque..
por cierto 3 grs son 3000 mgrs
si tu quieres tomar un kilo de bcaas por que andas leyendo y te enguyes todo lo que lees en einternet y te la crees toda hacela piola no le vendas a todo el mundo por que asi creas una cadena de errores progresiva..
ok ? cuidado con eso..slds
me baso en las dosis standar que estan en los potes de bcaas, por ej en el de la on
eso de estudios concluyentes y el material que bajas de internet OYE GEOTOP deja de comprar todo lo que pasan por internet...te estas haciendo un bodoque del porte de un buque..
por cierto 3 grs son 3000 mgrs
si tu quieres tomar un kilo de bcaas por que andas leyendo y te enguyes todo lo que lees en einternet y te la crees toda hacela piola no le vendas a todo el mundo por que asi creas una cadena de errores progresiva..
ok ? cuidado con eso..slds