American Dietetic Association; Dietitians of Canada; American College of Sports Medicine, Rodriguez NR, Di Marco NM, Langley S. American College of Sports Medicine position stand. Nutrition and athletic performance. Med Sci Sports Exerc. 2009 Mar;41(3):709-31. doi: 10.1249/MSS.0b013e31890eb86. PMID: 19225360.
Duncan MJ, Stanley M, Parkhouse N, Cook K, Smith M. Acute caffeine ingestion enhances strength performance and reduces perceived exertion and muscle pain perception during resistance exercise. Eur J Sport Sci. 2013;13(4):392-9. doi: 10.1080/17461391.2011.635811. Epub 2011 Dec 5. PMID: 23834545.
Fett CA, Aquino NM, Schantz Junior J, Brandão CF, de Araújo Cavalcanti JD, Fett WC. Performance of muscle strength and fatigue tolerance in young trained women supplemented with caffeine. J Sports Med Phys Fitness. 2018 Mar;58(3):249-255. doi: 10.23736/S0022-4707.17.06615-4. Epub 2017 Apr 13. PMID: 28409508.
Guest NS, VanDusseldorp TA, Nelson MT, Grgic J, Schoenfeld BJ, Jenkins NDM, Arent SM, Antonio J, Stout JR, Trexler ET, Smith-Ryan AE, Goldstein ER, Kalman DS, Campbell BI. International society of sports nutrition position stand: caffeine and exercise performance. J Int Soc Sports Nutr. 2021 Jan 2;18(1):1. doi: 10.1186/s12970-020-00383-4. PMID: 33388079; PMCID: PMC7777221.
Higgins S, Straight CR, Lewis RD. The Effects of Preexercise Caffeinated Coffee Ingestion on Endurance Performance: An Evidence-Based Review. Int J Sport Nutr Exerc Metab. 2016 Jun;26(3):221-39. doi: 10.1123/ijsnem.2015-0147. Epub 2015 Nov 16. PMID: 26568580.
Spriet L. L. (2014). Exercise and sport performance with low doses of caffeine. Sports medicine (Auckland, N.Z.), 44 Suppl 2(Suppl 2), S175–S184. https://doi.org/10.1007/s40279-014-0257-8
(Guest, N. S., VanDusseldorp, T. A., Nelson, M. T., Grgic, J., Schoenfeld, B. J., Jenkins, N., Arent, S. M., Antonio, J., Stout, J. R., Trexler, E. T., Smith-Ryan, A. E., Goldstein, E. R., Kalman, D. S., & Campbell, B. I. (2021). International society of sports nutrition position stand: caffeine and exercise performance. Journal of the International Society of Sports Nutrition, 18(1), 1. https://doi.org/10.1186/s12970-020-00383-4)