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HORMONAL RESPONSES TO CONCURRENT STRENGTH AND ENDURANCE TRAINING WITH DIFFERENT EXERCISE ORDERS.
MedLine Citation:
PMID:  22222319     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The purpose of this study was to examine the influence of the intrasession sequencing of concurrent strenght and aerobic training on the acute testosterone and cortisol responses. Ten young recreationally strength-trained men (23.5 ± 0.9 years) performed two exercise interventions: aerobic-strength (AS) and strength-aerobic (SA), which consisted of 30 minutes of aerobic exercise on cycle ergometer at 75% of maximal heart rate; and, three sets of eight repetitions at 75% of one repetition maximum (1RM) in four strength exercises. Maximal heart rate was determined using a maximal incremental test on cycle ergometer.. Blood samples were collected before, between exercise modalities, and immediately after the concurrent training sessions to determine basal and acute total testosterone (TT) and cortisol (COR) concentrations. There were significant increases in TT after the first modality in both exercise orders (P<0.05). However, the TT level remained significantly higher than resting levels after the second exercise modality only in the AS (P<0.05), which resulted in significant higher relative total change after the complete concurrent training session compared with SA (P<0.05). Regarding COR, there were significant increases after the first modality in both AS and SA orders (P<0.05), but the COR returned to resting levels after the second modality in both AS and SA interventions. During AS and SA, the change observed after the first modality performance was greater than after the second in both hormones. The present results suggest that the TT response is optimized after the AS order, whereas both AS and SA produced similar hormonal levels at all time points. However, is important to state that the present results should be applied only when short duration and moderate intensity aerobic training is performed.
Authors:
Eduardo Lusa Cadore; Mikel Izquierdo; Mariah Gonçalves Dos Santos; Jocelito Bijoldo Martins; Francisco Luiz Rodrigues Lhullier; Ronei Silveira Pinto; Rodrigo Ferrari Silva; Luiz Fernando Martins Kruel
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-1-03
Journal Detail:
Title:  Journal of strength and conditioning research / National Strength & Conditioning Association     Volume:  -     ISSN:  1533-4287     ISO Abbreviation:  -     Publication Date:  2012 Jan 
Date Detail:
Created Date:  2012-1-6     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9415084     Medline TA:  J Strength Cond Res     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
1Exercise Research Laboratory, Physical Education School, Federal University of Rio Grande do Sul, Porto Alegre, Brazil; 2Department of Health Sciences, Public University of Navarre, Navarre, Spain.
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