Document Detail


The effects of exercise modality on the incidence of plateau at V·O2max.
MedLine Citation:
PMID:  22856347     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
The purpose of this study was to determine the effect of exercise modality on the incidence of plateau at V·O2max. Twelve recreationally active men (age, 21·7 ± 2·3 year; mass, 74·8 ± 6·5 kg; height, 177·6 ± 5·6 cm) completed four incremental tests to volitional exhaustion, of which two were completed on a treadmill (TRE) and two were completed using a cycle ergometer (CYC). The work rate employed for CYC was 1 W·2 s(-1) from an initial loading of 100 W with cadence being maintained at 60 rpm. For TRE, the workload (gradient) increased at a rate of 0·5% · 30 s(-1) while maintaining a constant running speed of 10 kph. Throughout all the trials, V·O2 was determined on a breath-by-breath basis using a precalibrated metabolic cart. The criteria adopted for determination of a plateau was a Δ V·O2 over the final two consecutive 30-s sampling periods of ≤50 ml · min(-1) . Averaging across the two trials per each exercise modality showed a significant difference for plateau incidence between CYC (8%) and TRE (58%) (P = 0·017). This was aligned with a significant difference in the slope of the regression line during the final 60 s of the V·O2max test, CYC (99·9 ± 49·7 ml · min(-1) ) and TRE (49·6 ± 42·6 ml · min(-1) ) (P = 0·017). Repeat measures ANOVA of these data suggests that plateau incidence rates at V·O2max differ between treadmill- and cycle ergometry-based exercises. Future studies need to address whether these response rates are replicated in well-trained athletes.
Authors:
Dan Gordon; Mashihullah Mehter; Marie Gernigon; Oliver Caddy; Don Keiller; Richard Barnes
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Publication Detail:
Type:  Journal Article     Date:  2012-05-01
Journal Detail:
Title:  Clinical physiology and functional imaging     Volume:  32     ISSN:  1475-097X     ISO Abbreviation:  Clin Physiol Funct Imaging     Publication Date:  2012 Sep 
Date Detail:
Created Date:  2012-08-03     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101137604     Medline TA:  Clin Physiol Funct Imaging     Country:  England    
Other Details:
Languages:  eng     Pagination:  394-9     Citation Subset:  IM    
Copyright Information:
© 2012 The Authors Clinical Physiology and Functional Imaging © 2012 Scandinavian Society of Clinical Physiology and Nuclear Medicine.
Affiliation:
Anglia Ruskin University, Cambridge, UK.
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