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Alternative procedures for the 3-min all-out exercise test.
MedLine Citation:
PMID:  23090321     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
ABSTRACT: The cycling 3-min all-out exercise test (3 MT) provides measures of critical power (CP) and the curvature constant (W') for the relationship between power and time limit to exhaustion in the severe exercise domain. The original procedures for the 3 MT required a preliminary graded exercise test (GXT) to establish the linear factor and the fixed load for the test. We evaluated a new procedure of establishing the load for the 3 MT using a percentage of body mass (% BM). Fifteen subjects of varied fitness levels completed a custom GXT-verification protocol to establish the gas exchange threshold and VO2max, a 3 MT using a load derived with the linear factor, and a 3 MT using a % BM. The subjects also completed a subsequent exhaustive bout at 10% >CP. CP and W' estimated from either protocol did not differ. CP estimates were consistent (α = 0.97, SEM = 7.1 W, CV = 4%); however, W' was less reliable, a finding true of any method of measuring W'. VO2 evoked during the 3 MT was lower than the values evoked by the exhaustive GXT-verification bouts and the 10% >CP bout following the 3 MT. All individual VO2 values in the 10% >CP bout were ≥ values measured in the 3 MT. Our findings indicate several viable procedures for administering the 3 MT are plausible.
Authors:
Ida E Clark; Steven R Murray; Robert W Pettitt
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-10-19
Journal Detail:
Title:  Journal of strength and conditioning research / National Strength & Conditioning Association     Volume:  -     ISSN:  1533-4287     ISO Abbreviation:  J Strength Cond Res     Publication Date:  2012 Oct 
Date Detail:
Created Date:  2012-10-23     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:
Viola Holbrook Human Performance Laboratory, Minnesota State University, Mankato, Mankato MN.
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