Skip to main content

Table 2 Influence of test beverages on carbohydrate and fat oxidation rates during a submaximal exercise test

From: Assessing a commercially available sports drink on exogenous carbohydrate oxidation, fluid delivery and sustained exercise performance

   Overall Respective time period assessed
   60-150 mins 60-90 mins 90-120 mins 120-150 mins
CHOENDO P 1.97 ± 0.12 2.00 ± 0.12 1.92 ± 0.12 1.99 ± 0.12
(g.min-1) MD 1.51 ± 0.10* 1.66 ± 0.12* 1.52 ± 0.10* 1.35 ± 0.10*
MD + F 1.47 ± 0.07* 1.62 ± 0.08* 1.41 ± 0.07* 1.36 ± 0.07*
CHOEXO P 0.00 ± 0.00 -0.00 ± 0.01 0.02 ± 0.01 -0.00 ± 0.01
(g.min-1) MD 0.98 ± 0.04* 0.86 ± 0.04* 1.02 ± 0.04* 1.07 ± 0.03*
MD + F 1.27 ± 0.07*† 1.08 ± 0.07* 1.28 ± 0.07*† 1.45 ± 0.09*†
CHOEXO Eff P 0.1 ± 0.3 -0.1 ± 0.05 0.9 ± 0.8 -0.6 ± 0.8
(%) MD 57.9 ± 2.1* 50.5 ± 2.5* 60.1 ± 2.3* 63.0 ± 1.9*
MD + F 74.7 ± 4.4*† 63.5 ± 4.2* 75.5 ± 4.3*† 85.2 ± 5.0*†
FATTOT P 0.59 ± 0.06 0.58 ± 0.06 0.60 ± 0.06 0.58 ± 0.06
(g.min-1) MD 0.41 ± 0.05* 0.42 ± 0.05* 0.41 ± 0.05* 0.41 ± 0.05*
  MD + F 0.33 ± 0.04* 0.34 ± 0.03* 0.34 ± 0.04* 0.32 ± 0.04*
  1. Table 2 demonstrates the influence of the test beverages on endogenous and exogenous carbohydrate and fat oxidation rates during the submaximal exercise trial. Data for carbohydrate oxidation efficiency are also shown to demonstrate the progressive benefit of a combined sugar beverage overall and at 30 minute averaged timepoints. Data are presented as mean ± SE; n = 14. P, Placebo; MD, maltodextrin beverage; MD + F, maltodextrin-fructose beverage. CHOENDO, endogenous carbohydrate oxidation; FATTOT, total fat oxidation; CHOEXO, exogenous carbohydrate oxidation; CHOEXO Eff, carbohydrate oxidation efficiency *denotes a significant difference (P < 0.038) to P within respective time period. † denotes a significant difference between MD and MD + F (P < 0.025) within respective time period.