| A new VO2max protocol allowing self-pacing in maximal incremental exercise. | |
| | |
MedLine Citation:
|
PMID: 21505226 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
|
Introduction The traditional maximal oxygen uptake (VO(2max)) protocol has received criticism for being an unnatural form of exercise, lacking ecological validity and producing different VO(2max) responses depending on protocol duration and work rate increments. Purpose The purpose of this investigation was to design and test a new VO(2max) protocol allowing subjects to self-pace their work rate while maintaining an incremental test structure. Methods 16 untrained subjects completed a self-paced VO(2max) protocol (SPV) and a traditional VO(2max) test in a counter-balanced, crossover design. The SPV used incremental 'clamps' of ratings of perceived exertion (RPE) over 5 × 2-min stages (10-min duration) while allowing subjects to vary their power output (PO) according to the required RPE. Results Subjects achieved significantly higher (p < 0.05) VO(2max) values (40 ± 10 ml/kg/min vs 37 ± 8 ml/kg/min) and peak POs (273 ± 58 W vs 238 ± 55 W) in the SPV. Higher VO(2max) values were observed in the SPV even when a plateau (VO(2)-time slope <0.05 l/min) occurred in the traditional test. No differences were found between any other measured physiological variable (minute ventilation, heart rate and respiratory exchange ratio). Conclusions As SPV is a closed-loop test (10-min duration) that allows subjects to self-pace their work rate, it disregards the need for experimenters to estimate starting work rates, stage lengths and increments in order to bring about volitional exhaustion in 8-10 min. The observation that the SPV may also elicit higher VO(2max) values than a traditional test warrants further research in this area and its consideration as standard measure to elicit VO(2max). |
| | |
Authors:
|
Alexis R Mauger; Nick Sculthorpe |
Related Documents
:
|
19727016 - Effects of fatigue and recovery on knee mechanics during side-step cutting. 6454146 - Electromyographic activity of back musculature during williams' flexion exercises. 15262636 - Knee laxity does not vary with the menstrual cycle, before or after exercise. 7641476 - Relationship between severity of gonarthrosis and cardiovascular fitness. 6725726 - Epidemiology of parturient paresis: predisposing factors with emphasis on dry cow feedi... 3931936 - Exposure of hay fever subjects to an indoor environmental grass pollen challenge system. |
Publication Detail:
|
Type: JOURNAL ARTICLE Date: 2011-4-19 |
Journal Detail:
|
Title: British journal of sports medicine Volume: - ISSN: 1473-0480 ISO Abbreviation: - Publication Date: 2011 Apr |
Date Detail:
|
Created Date: 2011-4-20 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 0432520 Medline TA: Br J Sports Med Country: - |
Other Details:
|
Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
|
Institute for Sport and Physical Activity Research, Department of Sport and Exercise Sciences, University of Bedfordshire, Bedford, UK. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Crystal structure of the C-terminal region of Streptococcus mutans antigen I/II and characterization...
Next Document: Using quantitative proteomic analysis to understand genotype specific intrinsic drug resistance in m...