Effects of caffeine on anaerobic exercise in boys. Academic Article uri icon

abstract

  • The effects of caffeine on anaerobic exercise in young boys was investigated. Twenty-four healthy 8-10 year old boys participated in a randomized double-blind, double-crossover, counter-balanced study. Each subject received the caffeinated drink (CAF--5 mg kg(-1)) or placebo (PL) twice each on four separate visits. Sixty minutes following ingestion of either CAF or PL boys performed a static hand-grip test and then a Wingate test. Reliability was moderately high for the Wingate test (R = .70-0.95). Hand-grip reliability was higher for CAF (R = .88) than PL (R = .52). Mean power (180 36 vs 173 28 W) was significantly higher (p < .05) in CAF versus PL, respectively. There were no differences in peak power or static hand-grip maximal voluntary contraction with CAF. Further, peak HR (190 10 vs 185 10 beats min(-1)) was significantly higher in CAF versus PL, respectively. Thus, in this study a moderately high dose of CAF significantly increased the average power during a Wingate test, yet it does not affect peak power or static hand-grip strength.

published proceedings

  • Pediatr Exerc Sci

altmetric score

  • 1.85

author list (cited authors)

  • Turley, K. R., Rivas, J. D., Townsend, J. R., Morton, A. B., Kosarek, J. W., & Cullum, M. G.

citation count

  • 8

complete list of authors

  • Turley, Kenneth R||Rivas, Joey D||Townsend, Jeremey R||Morton, Aaron B||Kosarek, Jason W||Cullum, Mark G

publication date

  • May 2012