Table 1.
Graded exercise testing protocol (Bruce protocol).
| Stage | Time (min) | Speed (km/h) | Grade (%) |
|---|---|---|---|
| 0 | −3–0 | 2.7 | 0 |
| 1 | 0–3 | 2.7 | 10 |
| 2 | 3–6 | 4.0 | 12 |
| 3 | 6–9 | 5.5 | 14 |
| 4 | 9–12 | 6.8 | 16 |
| 5 | 12–15 | 8.0 | 18 |
| 6 | 15–18 | 8.9 | 20 |
| 7 | 18–21 | 9.7 | 22 |
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