Mochamad Purnomo, Noor Rohmah Mayasari, Cleonara Yanuar Dini, Moh. Fathur Rohman, Muhammad Labib Siena Ar Rasyid
Background: Caffeine is one of the most popular ergogenic aids widely used by coaches and athletes. Caffeinated chewing gums can be rapidly absorbed and may improve endurance as measured by VO2 max. This study investigates the effect of caffeinated chewing gum on the levels of VO2 max among physically active individuals. Methods: A randomized, double-blind, placebo-controlled, matched-pair trial design was used. Twenty-two physically active men were recruited and completed this study. Participants were then divided into two groups: A caffeinated chewing gum group (CG) and a placebo group (PG), with eleven participants in each group. Results: No adverse effect was reported by the participants during this study. The findings showed that caffeinated chewing gum was not effective in improving right or left handgrip and back or leg dynamometer but effectively increased VO2 Max (PG: 1.45±2.44 ml/kg vs CG: 4.14±2.12 ml/kg; P<0.012). Conclusion: This study concluded that a caffeine dose of ~180 mg or ~3 mg/kg body weight in chewing gum increases maximal oxygen uptake among physically active individuals. © 2026 Shahid Sadoughi University of Medical Sciences. All rights reserved.
Department of Sports Coaching Education, Vocational Faculty, Universitas Negeri Surabaya, Lidah Wetan, Kec. Lakarsantri, Jawa Timur, Surabaya, Indonesia; Department of Nutrition, Faculty of Sports and Health Sciences, Universitas Negeri Surabaya, Lidah Wetan, Kec. Lakarsantri, Jawa Timur, Surabaya, Indonesia; Department of Health and Recreation Education, Faculty of Sports and Health Sciences, Universitas Negeri Surabaya, Lidah Wetan, Kec. Lakarsantri, Jawa Timur, Surabaya, Indonesia; Pusat Unggulan IPTEK (PUI), Sport Exercise Research Center, Universitas Negeri Surabaya, Lidah Wetan, Kec. Lakarsantri, Jawa Timur, Surabaya, Indonesia
