Document Detail

Caffeine does not alter RPE or pain perception during intense exercise in active women.
MedLine Citation:
PMID:  22813436     Owner:  NLM     Status:  Publisher    
Attenuated perceptions of exertion and leg pain are typically reported during exercise with caffeine ingestion, yet these responses are relatively unexplored in women. The primary aim of this study was to assess the effect of caffeine on RPE and pain perception during a simulated time trial. Ten active women (age = 22.1 ± 1.9 yr) completed an 8.2 km "all out" time trial on each of three days separated by at least 48 h. Initially, a practice trial was completed, and participants refrained from products containing caffeine and lower-body exercise for 24 h prior to subsequent trials. During exercise, heart rate (HR), RPE, and leg pain were recorded. Using a double-blind, randomized crossover design, participants ingested caffeine (6 mg/kg body weight + 6 mg/kg body weight glucose) or placebo (6 mg/kg bw of glucose) 1 h pre-exercise. Despite not altering (p > 0.05) RPE, HR, or leg pain, caffeine improved (P < 0.05) cycling performance (17.7 ± 1.0 min vs. 18.2 ± 1.1 min) and power output (121.6 ± 17.5 W vs. 114.9 ± 17.9 W) versus placebo. Caffeine's ergogenic effects may be independent of changes in RPE or leg pain in active women performing a simulated time trial.
Todd A Astorino; Lindsay R Roupoli; Britten R Valdivieso
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-7-16
Journal Detail:
Title:  Appetite     Volume:  -     ISSN:  1095-8304     ISO Abbreviation:  -     Publication Date:  2012 Jul 
Date Detail:
Created Date:  2012-7-20     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8006808     Medline TA:  Appetite     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012. Published by Elsevier Ltd.
Department of Kinesiology, California State University--San Marcos.
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