dúvida cruel... Creatina e pó de guaraná.

[monteirorc]

Bom galera, é o seguinte.

No momento estou tomando creatina pra me dar mais força e evitar o máximo a fadiga durante os treinos. Até aí beleza, estou conseguindo.

O foda é que eu as vezes vou pra academia pregadaço por causa do trampo, sem animo algum, meio com sono.

A pergunta é: Eu posso tomar um estimulante (tipo pó de guaraná) junto com a creatina ???? Existe a possibilidade um "cortar" o efeito do outro?

Me desculpem se a pergunta é cretina, mas é uma dúvida forte que tenho e no que pesquiso não achei resposta...

Muito grato !!!!

[monteirorc]

Alguém de ajuda ae por favor......

[Visitante {STANLEY}]

O guaraná contém cafeína, e a cafeína corta o efeito ergogênico da creatina, portanto não deve usar essa combinação, pois estaria disperdiçando a creatina.

Caffeine counteracts the ergogenic action of muscle creatine loading.

This study aimed to compare the effects of oral creatine (Cr) supplementation with creatine supplementation in combination with caffeine (Cr+C) on muscle phosphocreatine (PCr) level and performance in healthy male volunteers (n = 9). Before and after 6 days of placebo, Cr (0.5 g x kg-1 x day-1), or Cr (0.5 g x kg-1 x day-1) + C (5 mg x kg-1 x day-1) supplementation, 31P-nuclear magnetic resonance spectroscopy of the gastrocnemius muscle and a maximal intermittent exercise fatigue test of the knee extensors on an isokinetic dynamometer were performed. The exercise consisted of three consecutive maximal isometric contractions and three interval series of 90, 80, and 50 maximal voluntary contractions performed with a rest interval of 2 min between the series. Muscle ATP concentration remained constant over the three experimental conditions. Cr and Cr+C increased (P < 0.05) muscle PCr concentration by 4-6%. Dynamic torque production, however, was increased by 10-23% (P < 0.05) by Cr but was not changed by Cr+C. Torque improvement during Cr was most prominent immediately after the 2-min rest between the exercise bouts. The data show that Cr supplementation elevates muscle PCr concentration and markedly improves performance during intense intermittent exercise. This ergogenic effect, however, is completely eliminated by caffeine intake.

Vandenberghe K, Gillis N, Van Leemputte M, Van Hecke P, Vanstapel F, Hespel P.

Faculty of Physical Education and Physiotherapy, Department of Kinesiology, Katholieke Universiteit Leuven, Belgium.

J Appl Physiol 1996 Feb;80(2):452-7 Related Articles, Books, LinkOut