Document Detail

Influence of upper-body exercise order on hormonal responses in trained men.
MedLine Citation:
PMID:  23438229     Owner:  NLM     Status:  In-Data-Review    
The aim of this study was to examine acute hormonal responses after different sequences of an upper-body resistance-exercise session. Twenty men completed 2 sessions (3 sets; 70% 1-repetition maximum; 2 min passive rest between sets) of the same exercises in opposite sequences (larger to smaller vs. smaller to larger muscle-group exercises). Total testosterone (TT), free testosterone (FT), testosterone/cortisol (T/C) ratio, sex-hormone-binding globulin (SHBG), growth hormone (GH), and cortisol (C) concentrations were measured before and immediately after each sequence. The results indicate that the GH concentration increased after both sessions, but the increase was significantly greater (p < 0.05) after the sequence in which larger muscle-group exercises were performed prior to the smaller muscle-group exercises. No differences were observed between sessions for TT, FT, SHBG, C, or the T/C ratio at baseline or immediately after resistance exercise. These results indicate that performing larger muscle-group exercises first in an upper-body resistance-exercise session leads to a significantly greater GH response. This may have been due to the significantly greater exercise volume accomplished. In summary, the findings of this investigation support the common prescriptive recommendation to perform larger-muscle group exercises first during a resistance-exercise session.
Roberto Simão; Richard Diego Leite; Guilherme Fleury Fina Speretta; Alex Souto Maior; Belmiro Freitas de Salles; Tácito Pessoa de Souza Junior; Jakob L Vingren; Jeffrey M Willardson
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Publication Detail:
Type:  Journal Article     Date:  2013-02-07
Journal Detail:
Title:  Applied physiology, nutrition, and metabolism = Physiologie appliquée, nutrition et métabolisme     Volume:  38     ISSN:  1715-5312     ISO Abbreviation:  Appl Physiol Nutr Metab     Publication Date:  2013 Feb 
Date Detail:
Created Date:  2013-02-26     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101264333     Medline TA:  Appl Physiol Nutr Metab     Country:  Canada    
Other Details:
Languages:  eng     Pagination:  177-81     Citation Subset:  IM    
a School of Physical Education and Sports, Universidade Federal do Rio de Janeiro, Brazil.
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