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Caffeine gum and cycling performance: a timing study.
Ryan EJ, Kim CH, Fickes EJ, Williamson M, Muller MD, Barkley JE, Gunstad J, Glickman EL. Ryan EJ, et al. Among authors: barkley je. J Strength Cond Res. 2013 Jan;27(1):259-64. doi: 10.1519/JSC.0b013e3182541d03. J Strength Cond Res. 2013. PMID: 22476164
Low-dose caffeine administered in chewing gum does not enhance cycling to exhaustion.
Ryan EJ, Kim CH, Muller MD, Bellar DM, Barkley JE, Bliss MV, Jankowski-Wilkinson A, Russell M, Otterstetter R, Macander D, Glickman EL, Kamimori GH. Ryan EJ, et al. Among authors: barkley je. J Strength Cond Res. 2012 Mar;26(3):844-50. doi: 10.1519/JSC.0b013e31822a5cd4. J Strength Cond Res. 2012. PMID: 22293680 Clinical Trial.
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