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J Hum Kinet. 2014 Nov 12;43:131-8. doi: 10.2478/hukin-2014-0098. eCollection 2014 Sep 29.

Is long term creatine and glutamine supplementation effective in enhancing physical performance of military police officers?

Author information

1
Department of Sport Sciences, University of Trás-os-Montes and Alto Douro, Vila Real, Portugal.
2
Kinanthropometry and Human Development Laboratory - LABOCINE -UFPB, João Pessoa / PB, Brazil. ; Associate Programme on Graduate Program in Physical Education UPE / UFPB, João Pessoa, Paraíba, Brazil.
3
Department of Sport Sciences, University of Trás-os-Montes and Alto Douro, Vila Real, Portugal. ; Kinanthropometry and Human Development Laboratory - LABOCINE -UFPB, João Pessoa / PB, Brazil. ; Associate Programme on Graduate Program in Physical Education UPE / UFPB, João Pessoa, Paraíba, Brazil.
4
Research Centre for Sport, Health and Human Development, Vila Real, Portugal. ; Kinanthropometry and Human Development Laboratory - LABOCINE -UFPB, João Pessoa / PB, Brazil. ; Associate Programme on Graduate Program in Physical Education UPE / UFPB, João Pessoa, Paraíba, Brazil.
5
Department of Sport Sciences, Polytechnic Institute of Guarda (IPG, Guarda, Portugal). ; Research Unit for Inland Development (UDI, Portugal).
6
Department of Sport Sciences, University of Trás-os-Montes and Alto Douro, Vila Real, Portugal. ; Research Centre for Sport, Health and Human Development, Vila Real, Portugal.

Abstract

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.

KEYWORDS:

RCT; creatine; exercise; glutamine; military police officers; supplementation

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