- Open Access
Erratum to: The influence of a CYP1A2 polymorphism on the ergogenic effects of caffeine
© Womack et al.; licensee BioMed Central. 2015
Received: 7 October 2014
Accepted: 20 October 2014
Published: 30 May 2015
The original article was published in Journal of the International Society of Sports Nutrition 2012 9:7
Following publication of this article , we recently noticed that two subjects in this study were not assigned to the correct genetic groups. One of the AA homozygotes was incorrectly entered as a C allele carrier and we had the opposite situation for a second subject.
We have re-run the primary statistical analysis with the subjects assigned to their correct groups. The corrected analysis produced very similar results to our initial, published findings as we observed a significant treatment effect and a significant genotype x treatment interaction due to a higher degree of response in the AA homozygotes.
A. Original Data: 40-km cycling time for Placebo and Caffeine conditions for AA homozygotes and C-allele carriers
76.1 +/- 5.8 min
72.4 +/- 4.2 min
72.2 +/- 4.2 min
70.4 +/- 4.3 min
B. Corrected Data: 40-km cycling time for Placebo and Caffeine conditions for AA homozygotes and C-allele carriers
75.1 +/- 6.1 min
71.6 +/- 4.3 min
73.1 +/- 4.5 min
71.6 +/- 4.4 min
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.