Table 2. Effects of cycling cadence and intensity on power, blood glucose and lactate, respiratory exchange ratio (RER), heart rate, oxygen uptake (VO), rating of perceived exertion (RPE), energy expenditure and gross efficiency. Data are means (± SD).
|
80 RPM |
100 RPM |
|
65% VO2 max |
80% VO2 max |
65% VO2 max |
80% VO2 max |
| Power (W) |
223 (42) |
292 (34) |
223 (42) |
292 (34) |
| Glucose (mmol·L-1) |
5.4 (.5) |
5.3 (.6) |
5.4 (.4) |
5.3 (.4) |
| Lactate (mmol·L-1) |
1.2 (03) |
2.6 (.7) * |
1.5 (.5) |
3.2 (1.4) *† |
| RER |
.88 (.03) |
.94 (.01) * |
.88 (.02) |
.96 (.02) * |
| Heart rate (bpm) |
135 (11) |
158 (10) * |
140 (12) † |
163 (11) *† |
| VO2 (L·min-1) |
2.86 (0.53) |
3.67 (0.44) * |
3.05 (0.54) † |
3.82 (0.50) *† |
| RPE (0-10 scale) |
3.8 (1.5) |
6.5 (1.0) * |
3.9 (1.5) |
6.8 (1.2) * |
| Energy expenditure (kcal.min-1) |
14.3 (2.7) |
18.3 (2.2) * |
15.2 (2.7) † |
19.1 (2.5) *† |
| Gross efficiency (%) |
22.8 (1.0) |
23.1 (0.7) |
21.3 (4.5) † |
22.1 (0.9) *† |
* p <0.05 vs. 65% VO max† p<0.05 vs. 80 RPM, (n = 8)
