Document Detail


Assessment of anaerobic power to verify VO2max attainment.
MedLine Citation:
PMID:  20662880     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Across various populations, verification testing is used to confirm VO(2)max attainment and has repeatedly shown similar VO(2)max values to those obtained from incremental exercise. Yet, many individuals show meaningful differences in VO(2)max between protocols, and an explanation for this is unknown. The aim of the study was to elucidate this phenomenon in 30 men and women of similar age, fitness, and physical activity using assessment of anaerobic power. On day 1, they completed the Wingate test, and returned at least 48 h later to complete incremental cycle ergometry followed by a verification protocol. During exercise, ventilation, pulmonary gas exchange data, and heart rate (HR) were continuously measured. Mean VO(2)max was similar (P > 0.05) between protocols (42.05 +/- 5.88 ml kg(-1) per min versus 42.03 +/- 5.75 ml kg(-1) per min, respectively), although seven subjects (23%) revealed a VO(2)max that was not 'verified' by the supramaximal protocol. Indices of power output and gas exchange data were similar (P > 0.05) between subjects who revealed a 'true' VO(2)max compared to those who did not, although peak and mean power was consistently higher in persons whose VO(2)max was not 'verified.' A previously established HRmax criterion for verification testing was not met in 17% of subjects. Additional study is merited to identify alternate determinants of VO(2)max, such as muscle activation via assessment of motor unit recruitment, and to investigate utility of verification testing to confirm VO(2)max attainment in elite athletes and the elderly.
Authors:
Todd A Astorino; Ailish C White
Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Clinical physiology and functional imaging     Volume:  30     ISSN:  1475-097X     ISO Abbreviation:  Clin Physiol Funct Imaging     Publication Date:  2010 Jul 
Date Detail:
Created Date:  2010-07-28     Completed Date:  2010-11-08     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101137604     Medline TA:  Clin Physiol Funct Imaging     Country:  England    
Other Details:
Languages:  eng     Pagination:  294-300     Citation Subset:  IM    
Affiliation:
Department of Kinesiology, CSU-San Marcos, San Marcos, CA, USA. astorino@csusm.edu
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MeSH Terms
Descriptor/Qualifier:
Adult
Anaerobic Threshold
Exercise*
Exercise Test*
Female
Heart Rate
Humans
Male
Muscle Contraction*
Muscle Strength*
Muscle, Skeletal / metabolism*
Oxygen Consumption*
Pulmonary Gas Exchange
Time Factors
Young Adult

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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