Table 11. Cross-tabulation between measured and predicted VO2peak quintiles from peak performance for men and women.
| Men | Women | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Measured VO2peak | Measured VO2peak | |||||||||||
| Predicted | Q1 | Q2 | Q3 | Q4 | Q5 | Total | Q1 | Q2 | Q3 | Q4 | Q5 | Total |
| VO2peak | ||||||||||||
| Q1 | 259 | 69 | 14 | 2 | 0 | 344 | 256 | 63 | 10 | 1 | 0 | 330 |
| 75.3% | 20.1% | 4.1% | 0.6% | 0% | 100% | 77.6% | 19.1% | 3.0% | 0.3% | 0% | 100% | |
| Q2 | 169 | 232 | 108 | 30 | 3 | 542 | 158 | 216 | 134 | 30 | 5 | 543 |
| 31.2% | 42.8% | 19.9% | 5.5% | 0.6% | 100% | 29.1% | 39.8% | 24.7% | 5.5% | 0.9% | 100% | |
| Q3 | 19 | 132 | 206 | 123 | 22 | 502 | 53 | 152 | 208 | 127 | 29 | 569 |
| 3.8% | 26.3% | 41.0% | 24.5% | 4.4% | 100% | 9.3% | 26.7% | 36.6% | 22.3% | 5.1% | 100% | |
| Q4 | 4 | 18 | 110 | 221 | 108 | 461 | 6 | 40 | 109 | 246 | 135 | 536 |
| 0.9% | 3.9% | 23.9% | 47.9% | 23.4% | 100% | 1.1% | 7.5% | 20.3% | 45.9% | 25.2% | 100% | |
| Q5 | 0 | 2 | 15 | 76 | 319 | 412 | 1 | 2 | 13 | 70 | 305 | 391 |
| 0% | 0.5% | 3.6% | 18.4% | 77.4% | 100% | 0.3% | 0.5% | 3.3% | 17.9% | 78.0% | 100% | |
| Total | 451 | 453 | 453 | 452 | 452 | 2261 | 474 | 473 | 474 | 474 | 474 | 2369 |
Q1-5, quintile cut-off values for measured and predicted VO2peak. Men: <36.0, 36.0–41.5, 41.6–46.5, 46.6–52.0, >52.0 (measured quintiles); and <37.1, 37.1–41.6, 41.7–46.0, 46.1–51.3, >51.3 (predicted quintiles). Women: <29.1, 29.1–33.3, 33.4–37.3, 37.4–42.1, <42.1 (measured quintiles), and <30.5, 30.5–33.8, 33.9–37.1, 37.2–41.2, >41.2 (predicted quintiles). Kendall`s Tau statistic: 0.74 for men and 0.70 for women. Cohen Kappa statistic: 0.45 in men and 0.41 in women.