Table 3.
Absolute energy system contributions in each stage of the incremental exercise test. Data are means (±SD, n =10).
| Speed (km·h−1) |
6.0 | 7.2 | 8.4 | 9.6 | 10.8 | 12.0 | 13.2 | 14.4 | 15.6 | 16.8 | 18.0 |
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Aerobic (kJ) |
47.2 * (7.6) |
63.0 * (7.7) |
94.4 * (13.0) |
110.2 * (15.0) |
123.7 * (17.3) |
134.0 * (16.4) |
147.2 * (17.1) |
160.2 * (15.5) |
168.8 * (18.4) |
177.0 * (22.1) |
183.9 * (23.5) |
|
Glycolytic (kJ) |
2.1 (1.0) |
2.0 (.9) |
2.2 (1.1) |
4.3 (1.0) |
4.4 (1.6) |
6.0 (1.2) |
8.1 (2.0) |
12 (2.3) |
17.9 (2.5) |
20.3 (3.1) |
30.6 (3.0) |
|
WTOTAL (kJ) |
49.3 (7.4) |
65.1 (7.7) |
96.6 (12.3) |
114.4 (15.0) |
128.1 (17.6) |
140.0 (17.4) |
155.3 (18.7) |
172.1 (19.7) |
186.7 (25.0) |
197.3 (31.1) |
214.6 (25.8) |
WTOTAL: total metabolic demand.
* Different from glycolytic contribution (p < 0.05).