Document Detail


Comparison of a Field-Based Test to Estimate Functional Threshold Power and Power Output at Lactate Threshold.
MedLine Citation:
PMID:  22233784     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Gavin, TP, Van Meter, JB, Brophy, PM, Dubis, GS, Potts, KN, and Hickner, RC. Comparison of a field-based test to estimate functional threshold power and power output at lactate threshold. J Strength Cond Res 25(X): 000-000, 2012-It has been proposed that field-based tests (FT) used to estimate functional threshold power (FTP) result in power output (PO) equivalent to PO at lactate threshold (LT). However, anecdotal evidence from regional cycling teams tested for LT in our laboratory suggested that PO at LT underestimated FTP. It was hypothesized that estimated FTP is not equivalent to PO at LT. The LT and estimated FTP were measured in 7 trained male competitive cyclists (&OV0312;O2max = 65.3 ± 1.6 ml O2·kg·min). The FTP was estimated from an 8-minute FT and compared with PO at LT using 2 methods; LTΔ1, a 1 mmol·L or greater rise in blood lactate in response to an increase in workload and LT4.0, blood lactate of 4.0 mmol·L. The estimated FTP was equivalent to PO at LT4.0 and greater than PO at LTΔ1. &OV0312;O2max explained 93% of the variance in individual PO during the 8-minute FT. When the 8-minute FT PO was expressed relative to maximal PO from the &OV0312;O2max test (individual exercise performance), &OV0312;O2max explained 64% of the variance in individual exercise performance. The PO at LT was not related to 8-minute FT PO. In conclusion, FTP estimated from an 8-minute FT is equivalent to PO at LT if LT4.0 is used but is not equivalent for all methods of LT determination including LTΔ1.
Authors:
Timothy P Gavin; Jessica B Van Meter; Patricia M Brophy; Gabriel S Dubis; Katlin N Potts; Robert C Hickner
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-1-07
Journal Detail:
Title:  Journal of strength and conditioning research / National Strength & Conditioning Association     Volume:  -     ISSN:  1533-4287     ISO Abbreviation:  -     Publication Date:  2012 Jan 
Date Detail:
Created Date:  2012-1-11     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:
1Department of Exercise and Sport Science East Carolina University, Greenville, North Carolina; 2Department of Physiology, East Carolina University, Greenville, North Carolina; 3East Carolina Diabetes and Obesity Institute, East Carolina University, Greenville, North Carolina; and 4Human Performance Laboratory, East Carolina University, Greenville, North Carolina.
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