Does a physiological concentration of taurine increase acute muscle power output, time to fatigue, and recovery in isolated mouse soleus (slow) muscle with or without the presence of caffeine?

Journal article


Tallis, Jason, Higgins, Matthew F., Cox, Val M., Duncan, Michael J. and James, Rob S. 2014. Does a physiological concentration of taurine increase acute muscle power output, time to fatigue, and recovery in isolated mouse soleus (slow) muscle with or without the presence of caffeine? Canadian journal of physiology and pharmacology. https://doi.org/10.1139/cjpp-2013-0195
AuthorsTallis, Jason, Higgins, Matthew F., Cox, Val M., Duncan, Michael J. and James, Rob S.
Abstract

High concentrations of caffeine and taurine are key constituents of many ergogenic supplements ingested acutely to provide legal enhancements in athlete performance. Despite this, there is little evidence supporting the claims for the performance-enhancing effects of acute taurine supplementation. In-vitro models have demonstrated that a caffeine-induced muscle contracture can be further potentiated when combined with a high concentration of taurine. However, the high concentrations of caffeine used in previous research would be toxic for human consumption. Therefore, this study aimed to investigate whether a physiological dose of caffeine and taurine would directly potentiate skeletal muscle performance. Isolated mouse soleus muscle was used to examine the effects of physiological taurine (TAU), caffeine (CAF), and taurine-caffeine combined (TC) on (i) acute muscle power output; (ii) time to fatigue; and (iii) recovery from fatigue, compared with the untreated controls (CON). Treatment with TAU failed to elicit any significant difference in the measured parameters. Treatment with TC resulted in a significant increase in acute muscle power output and faster time to fatigue. The ergogenic benefit posed by TC was not different from the effects of caffeine alone, suggesting no acute ergogenic benefit of taurine.

KeywordsErgogenic aid; Force; Skeletal muscle; Work loop; Animals; Caffeine; Female; In Vitro Techniques; Mice; Muscle Contraction; Muscle Fatigue; Muscle, Skeletal; Taurine
Year2014
JournalCanadian journal of physiology and pharmacology
PublisherNRC Research Press
ISSN12057541
Digital Object Identifier (DOI)https://doi.org/10.1139/cjpp-2013-0195
Web address (URL)http://hdl.handle.net/10545/621162
hdl:10545/621162
Publication datesJan 2014
Publication process dates
Deposited15 Dec 2016, 09:21
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ContributorsUniversity of Derby
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