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Table 3 Assessment of oxygen uptake, power output, mean heart rate, blood glucose and perceived exertion during both the oxidation and performance trials

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

  

Oxidation trial

Performance trial

VO2 (L.min-1)

P

2.65 ± 0.07

N/A

MD

2.69 ± 0.06

N/A

MD + F

2.70 ± 0.09

N/A

Power (W)

P

176.3 ± 6.95

201.0 ± 22.4

 

MD

175.0 ± 6.67

197.6 ± 21.6

 

MD + F

174.4 ± 6.59

227.0 ± 23.2*

Heart rate (b.min-1)

P

128.7 ± 4.7

149.0 ± 6.3

 

MD

132.4 ± 3.7

151.9 ± 6.3

 

MD + F

133.1 ± 4.4†

160.7 ± 5.0*

Blood glucose (mmol.L-1)

P

3.90 ± 0.11

3.24 ± 0.25

MD

4.77 ± 0.12†

4.17 ± 0.22†

MD + F

4.97 ± 0.12†

4.18 ± 0.23†

RPETOTAL (6–20 scale)

P

11.9 ± 0.6

15.6 ± 0.6

MD

12.2 ± 0.5

16.3 ± 0.5

MD + F

11.6 ± 0.6

16.4 ± 0.7

RPELEGS (0–10 scale)

P

3.8 ± 0.4

7.1 ± 0.4

MD

4.2 ± 0.5

7.1 ± 0.3

 

MD + F

3.3 ± 0.4‡

6.9 ± 0.6

  1. Table 3 shows the average data for key physiological, power output and subjective perception of exertion vaiables over both the oxidation and performance trials. Data are presented as mean ± SE; (n = 14 for oxidation trial; n = 6 for performance trial finishers). P, Placebo; MD, maltodextrin beverage; MD + F, maltodextrin-fructose beverage; RPE, Rating of Perceived Exertion. *denotes a significant difference to MD and P (P < 0.03). † denotes significant difference to P (P < 0.05).‡ denotes a significant difference to MD (P = 0.021) within trial only.