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Rating of perceived exertion during cycling is associated with subsequent running economy in triathletes.
MedLine Citation:
PMID:  22575497     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
OBJECTIVES: To determine which commonly measured variables of cycling intensity are related to subsequent running economy in triathletes. DESIGN: Cross-sectional laboratory study. METHODS: Running economy was compared between a control run (no preceding cycle) and a run performed after a 45min high-intensity cycle in eighteen triathletes. Power output, heart rate, rating of perceived exertion (RPE) and blood lactate concentration were monitored throughout the cycle. The relationship between measures of cycle intensity and the change in running economy was evaluated using Pearson's product moment correlation. Changes in running economy were also interpreted using the smallest worthwhile change (>2.4%) and grouped accordingly (i.e. impaired, no change, or improved running economy). RESULTS: Triathletes' RPE at the end of the cycling bout was significantly associated with the change in running economy after cycling (r=0.57, p=0.01). Average RPE of the cycle bout and RPE at the end of the cycling bout were significantly different between groups, with higher RPE scores being related to impairments in running economy (p=0.04 and p=0.02 respectively). CONCLUSIONS: RPE during cycling is associated with subsequent running economy in triathletes. RPE is a simple, cost-effective measure that triathletes and their coaches can use in competition and training to control cycling intensity without the need for specialist equipment such as crank systems or blood analysers.
Authors:
Jason Bonacci; Veronica Vleck; Philo U Saunders; Peter Blanch; Bill Vicenzino
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-5-8
Journal Detail:
Title:  Journal of science and medicine in sport / Sports Medicine Australia     Volume:  -     ISSN:  1878-1861     ISO Abbreviation:  -     Publication Date:  2012 May 
Date Detail:
Created Date:  2012-5-11     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9812598     Medline TA:  J Sci Med Sport     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 Sports Medicine Australia. Published by Elsevier Ltd. All rights reserved.
Affiliation:
Deakin University, Centre for Exercise and Sports Science, Geelong, Victoria, Australia; Australian Institute of Sport, Department of Physical Therapies, Canberra, ACT, Australia.
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