The effects of glutamine supplementation on performance and hormonal responses in non-athlete male students during eight week resistance training

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Título: The effects of glutamine supplementation on performance and hormonal responses in non-athlete male students during eight week resistance training
Autor/es: Hakimi, Mehdi | Mohamadi, Maryam Ali | Ghaderi, Zoleikha
Palabras clave: Glutamine supplementation | Resistance training | Hormonal changes
Área/s de conocimiento: Educación Física y Deportiva
Fecha de publicación: dic-2012
Editor: Universidad de Alicante. Área de Educación Física y Deporte
Cita bibliográfica: HAKIMI, Mehdi; MOHAMADI, Maryam Ali; GHADERI, Zoleikha. “The effects of glutamine supplementation on performance and hormonal responses in non-athlete male students during eight week resistance training”. Journal of Human Sport and Exercise [en línea]. Vol. 7, No. 4 (2012). ISSN 1988-5202, pp. 770-782. http://www.jhse.ua.es/jhse/article/view/400 [consulta: 5 febrero 2013]
Resumen: The aim of this study was to determine the effects of glutamine supplementation on performance, and hormonal changes during an 8-week resistance training program in non athlete male students. Thirty healthy non athlete male (age 21.25 ± 1.6 years, height 173.2 ± 3.2 cm, body mass 72.8 ± 2.8 kg, VO2max 43.48± 2.38 ml•kg-1•min-1) were randomly divided into a glutamine supplementation (GL) group (n=15), and a placebo (PL) group (n=15). Each group was given either glutamine or a placebo in a double blind manner to be taken orally for eight weeks (0.35 g/kg/day). GL and PL groups performed the same weight training program 3 days, each week for 8 weeks. The training consisted of 3 sets of 8 repetitions, and the initial weight was 80% of the pre-1RM. Subjects were tested for performance and blood hormone concentrations before and after the 8-week period. Both groups increased their performance however the GL group showed significantly greater increases in upper and lower body strength, explosive muscular power, blood testosterone, GH and IGF-1 when compared to the PL group; however, cortisol concentrations were significantly more reduced in GL group when compared to the PL group. It can, therefore, be concluded that within 8 weeks glutamine supplementation during resistance training was found to increase performance (explosive muscular power, muscle strength) and improved body composition (increased body mass, fat-free mass and reduced body fat).
URI: http://hdl.handle.net/10045/26600
ISSN: 1988-5202
DOI: 10.4100/jhse.2012.74.05
Idioma: eng
Tipo: info:eu-repo/semantics/article
Derechos: Licencia Creative Commons Reconocimiento-NoComercial-SinObraDerivada 3.0
Revisión científica: si
Versión del editor: http://dx.doi.org/10.4100/jhse.2012.74.05
Aparece en las colecciones:Revistas - Journal of Human Sport and Exercise - 2012, Vol. 7, No. 4

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