Acute effect of resistance training volume on hormonal responses in trained men.
J Sports Med Phys Fitness
; 51(2): 322-8, 2011 Jun.
Article
in En
| MEDLINE
| ID: mdl-21681169
ABSTRACT
AIM:
The purpose of this study was to investigate the acute hormonal response to resistance training sessions with different volumes in men.METHODS:
Ten recreationally trained men (24.5±7.6 years; 76.2±9.2 kg; 175.6±1.5 cm; 24.5±5.5 kg/m(-2)) participated in the study. All subjects completed two experimental protocols with different volumes. The first protocol consisted of 3 sets at 80% of 6 RM and the second protocol was 3 sets at 80% of 12 RM with 2 minutes rest between sets and exercises, separated by seven days between them. The exercise order used was barbell bench press, leg press, machine front lat-pull down, leg curl, shoulder abduction and leg extension. The blood variables analyzed were testosterone, growth hormone (GH), cortisol and testosterone/cortisol ratio (TC) before (Pre) and immediately after (Post) each exercise session.RESULTS:
The intra-groups comparison for testosterone and hGH revealed a significant increase in 80%-6RM and 80%-12RM. Cortisol levels was significantly higher in 80%-12RM and TC ratio in 80% 6 RM when compared Pre and Post values. Inter-groups comparison showed higher hGH and cortisol levels and lower TC ratio for 80% 12 RM. There was no statistically significant different between 80%-6RM and 80%-12RM for testosterone.CONCLUSION:
The present study confirms that the volume of resistance training can be an important factor in the modulation of acute hormonal responses.
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Collection:
01-internacional
Database:
MEDLINE
Main subject:
Testosterone
/
Hydrocortisone
/
Growth Hormone
/
Resistance Training
Limits:
Adult
/
Humans
/
Male
Language:
En
Journal:
J Sports Med Phys Fitness
Year:
2011
Document type:
Article
Affiliation country:
Brazil