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DOES AEROBIC AND STRENGTH EXERCISE SEQUENCE IN THE SAME SESSION AFFECT THE OXYGEN UPTAKE DURING AND POST-EXERCISE?
MedLine Citation:
PMID:  21986689     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Concurrent training is a strategy employed in both general fitness and sports conditioning. The purpose of this study was to compare the responses of VO2 in different combinations of strength exercise with aerobic interval exercise. Eight men (23.6 ± 4.2 years; 178 ± 6.3 cm; 77 ± 7.9 kg; 7.67 ± 1.95% body fat) completed three combinations of strength (ST) and aerobic training (AT) in randomized order with a seven day recovery period: AT before ST exercises, AT between two blocks of ST exercises, and AT after ST exercises. ST comprised four exercises performed in 3 sets of 10 reps and two exercises, abdominal crunch and lumbar extension, performed in 3 sets of 30 and 20 reps, respectively. AT consisted of a 20-min interval cycling. There were no significant differences in the values of absolute or relative VO2, in heart rate (HR) and in respiratory exchange ratio (RER) when the three sessions (during + post-exercise measurements) were compared (Values are means ± SD). Analysing only ST in each session, differences were detected in the RER values (F=4.714; p<0.05; η=0.308) between AT before ST and AT in the middle of ST (1.01 ± 0.97 vs. 1.11 ± 0.07, respectively). In all sequences, there was a significant increase (p<0.05) in the values of relative and absolute VO2 and HR, and a significant decrease in RER values (p<0.05) from the first to the second part of the ST session. The values of absolute or relative VO2, HR and RER did not vary significantly among the three sessions as compared to the AT after ST. These data support the hypothesis that ST and AT, when performed in sequence in the same session, does not seem to affect overall oxygen consumption during the exercise session. Therefore, training sessions may incorporate both modalities without apparent impact on aerobic exercise.
Authors:
José Vilaça Alves; Francisco Saavedra; Roberto Simão; Jefferson Novaes; Matthew R Rhea; Danielle Green; Victor Machado Reis
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-10-07
Journal Detail:
Title:  Journal of strength and conditioning research / National Strength & Conditioning Association     Volume:  -     ISSN:  1533-4287     ISO Abbreviation:  -     Publication Date:  2011 Oct 
Date Detail:
Created Date:  2011-10-11     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:
1 University of Trás-os-Montes and Alto Douro (UTAD). Research Center for Sport, Health and Human Development, Vila Real, Portugal.; 2 Rio de Janeiro Federal University. School of Physical Education and Sports. Rio de Janeiro, Brazil.; 3 RACE Rx Academy of Exercise Sciences, Logan, Utah, USA, 84321; 4 A.T. Still University Human Movement Program, Mesa, Arizona, 85206.
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