The objective of this study was to analyze the effect of supplementation with creatine and glutamine on physical fitness of military police officers. Therefore, an experimental double blind study was developed, with the final sample composed by 32 men randomly distributed into three groups: a group supplemented with creatine (n=10), glutamine (n=10) and a placebo group (n=12) and evaluated in three distinct moments, in an interval of three months (T1, T2 and T3). The physical training had a weekly frequency of 5 sessions × 90 min, including strength exercises, local muscular resistance, flexibility and both aerobic and anaerobic capacity. After analyzing the effect of time, group and interaction (group × time) for measures that indicated the physical capabilities of the subjects, a significant effect of time for the entire variable was identified (p<0,05). However, these differences were not observed when the univaried intragroups and intergroups analysis was performed (p>0,05). In face of the results it was concluded that supplementation with creatine and glutamine showed no ergogenic effect on physical performance in military police officers.
RESUMOEste estudo analisou o efeito da suplementação com creatina ou glutamina sobre variáveis bioquímicas em policiais de militares. Neste propósito, desenvolveu-se um estudo experimental, duplo cego, com amostra de 32 homens distribuídos aleatoriamente, em três grupos: suplementados em creatina (n=10), glutamina (n=10) e grupo placebo (n=12) e avaliados em três momentos distintos, num intervalo de três meses (T1, T2 e T3) durante o período do treinamento físico militar, com frequência de cinco sessões de 90 minutos, por semana. Por meio da análise sanguínea mensuraram-se: os níveis de creatinina, triglicerídeos, colesterol total, HDL, VLDL, LDL. Deste modo, foi observado que a suplementação não foi a principal responsável pelas modificações observadas nas medidas ao longo do estudo, já que apenas o efeito do tempo foi significativo em três medidas: CREA (p= 0.001, ηp 2 = 0.50), HDL (p= 0.001, ηp 2 = 0.30), LDL (p= 0.009, ηp 2 = 0.20). Ou seja, a suplementação com creatina ou glutamina em policiais militares submetidos ao treinamento físico militar não causou efeito sobre as medidas bioquímicas.Palavras-chave: Suplementação alimentar, exercício, creatina, glutamina. ABSTRACTThe objective of this study was to analyze the effect of the supplementation of creatine and glutamine on biochemical variables in military police officers. Therefore, an experimental double blind study was developed, with final sample composed by 32 men distributed randomly, in three groups: supplemented in creatine (n=10), glutamine (n=10) and placebo group (n=12) and evaluated in three distinct moments, in an interval of three months (T1, T2 and T3). The physical training had weekly frequency of 05 sessions x 90 min of training. Through analysis of the blood is measured: the levels of creatinine, triglycerides, total cholesterol, HDL, VLDL, LDL. Thus, it was observed that supplementation was not primarily responsible for the changes observed in measures throughout the study, since only the time had a significant effect and in only three variables: CREA (p= 0.001, ηp 2 = 0.50), HDL (p= 0.001, ηp 2 = 0.30), LDL (p= 0.009, ηp 2 = 0.20). That is, supplementation with creatine or glutamine in the military police subjected to military physical training do not caused effect on biochemical measures.
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