Carbohydrate and caffeine mouth rinses do not affect maximum strength and muscular endurance performance

Neil Clarke, E. Kornilios, D.L. Richardson

Research output: Contribution to journalArticle

24 Citations (Scopus)
163 Downloads (Pure)

Abstract

Oral carbohydrate rinsing has beneficial effects on endurance performance and caffeine mouth rinsing either independently or in conjunction with carbohydrate may enhance sprinting performance. However, the effects of carbohydrate and/ or caffeine mouth rinses on resistance exercise have not been examined previously. The purpose of this study was to investigate the effects of carbohydrate and/ or caffeine rinsing on maximum strength and muscular endurance performance. Fifteen recreationally resistance trained males completed an exercise protocol which involved a one repetition maximum (1-RM) bench press followed by 60% of their 1-RM to failure in a double-blind, randomised, counterbalanced crossover design. Prior to exercise either 25 ml of a 6% (15 g; 0.20+/-0.02 g[middle dot]kg-1) carbohydrate (CHO), 1.2% (300 mg; 3.9+/-0.3 mg[middle dot]kg-1) caffeine (CAF), carbohydrate with caffeine (C+C) solutions, or water (PLA) were rinsed for 10 s. During the remaining session, no solution was rinsed (CON). All solutions were flavoured with (200 mg) sucralose. Felt arousal was recorded pre- and post-rinse and rating of perceived exertion was recorded immediately after the repetitions to failure. There were no significant differences in 1-RM (P=0.808; [eta]p2=0.02), the number of repetitions performed (P=0.682; [eta]p2=0.03) or the total exercise volume (P=0.482; [eta]p2=0.03) between conditions. RPE was similar for all trials (P=0.330; [eta]p2=0.08), while Felt arousal increased as a consequence of rinsing (P=0.001; [eta]p2=0.58), but was not different between trials (P=0.335; [eta]p2=0.08). These results suggest that rinsing with a carbohydrate and caffeine solution either independently or combined has no significant effect on maximum strength or muscular endurance performance.
Original languageEnglish
Pages (from-to)2926-2931
JournalJournal of Strength & Conditioning Research
Volume29
Issue number10
DOIs
Publication statusPublished - 2015

Bibliographical note

This is a non-final version of an article published in final form in Clarke, N.D. , Kornilios, E. and Richardson, D.L. (2015) Carbohydrate and caffeine mouth rinses do not affect maximum strength and muscular endurance performance. Journal of Strength & Conditioning Research, volume 29 (10): 2926-2931.
http://dx.doi.org/10.1519/JSC.0000000000000945

Keywords

  • rinsing
  • resistance exercise
  • bench press
  • arousal

Fingerprint Dive into the research topics of 'Carbohydrate and caffeine mouth rinses do not affect maximum strength and muscular endurance performance'. Together they form a unique fingerprint.

  • Cite this