Effects of acute exposure to mild simulated hypoxia on hormonal responses to low-intensity resistance exercise in untrained men.
Res Sports Med
; 22(3): 240-52, 2014.
Article
em En
| MEDLINE
| ID: mdl-24950112
ABSTRACT
This study examined hormonal responses to low-intensity resistance exercise under mild simulated hypoxia. Ten resistance untrained men performed five sets of 15 repetitions of squat exercise at 30% of 1RM under normobaric hypoxia (FiO2 = 15%) and normoxia in a cross-over and counter-balanced design. Blood lactate (LAC), growth hormone (GH), total testosterone (T) and cortisol (C) were measured at pre-exercise, immediately post-exercise and 15 minutes post-exercise. LAC, GH and T significantly increased immediately after squat exercise in both trials (p < 0.05). While T returned to baseline, GH remained significantly greater at 15 minutes post-exercise. Cortisol significantly decreased immediately after and 15 minutes post-exercise in both trials (p < 0.05). No significant differences were observed between two trials in LAC, GH, T and C. It was concluded that low-intensity resistance exercise performed under mild simulated hypoxia does not induce greater anabolic hormonal responses in resistance untrained men.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Testosterona
/
Hidrocortisona
/
Exercício Físico
/
Ácido Láctico
/
Hormônio do Crescimento Humano
/
Treinamento Resistido
/
Hipóxia
Tipo de estudo:
Clinical_trials
/
Etiology_studies
Limite:
Adult
/
Humans
/
Male
Idioma:
En
Revista:
Res Sports Med
Assunto da revista:
MEDICINA ESPORTIVA
Ano de publicação:
2014
Tipo de documento:
Article
País de afiliação:
Taiwan