Table 2 Interobserver Agreement for Determination of Ventilatory Anaerobic Threshold (VO2@AT)
From: Interobserver variability of ventilatory anaerobic threshold in asymptomatic volunteers
n | Mean VO2@AT (±SD), mL/min | Mean difference (±SDd), mL/min | 95% LOA,a mL/min | TEb | Mean difference (± SDd), % | 95% LOA,a % | ICC (95% CI) | CVTE, c % | |
|---|---|---|---|---|---|---|---|---|---|
Before consensus discussion | |||||||||
Reader 1 vs reader 2 (phase 1) | 522 | 1,093 (±279) | 0 (±127) | ±250 | 90 | 0 (±11) | ±21 | 0.901 (0.884–0.916) | 8.2 |
After consensus discussion | |||||||||
Reader 1 vs reader 2 (phase 1) | 522 | 1,085 (±283) | 3 (±46) | ±90 | 32 | 0 (±4) | ±8 | 0.987 (0.985–0.989) | 3.0 |
Reader 1 vs reader 2 (phase 1 + 2) | 1,056 | 1,048 (±246) | 5 (±82) | ±161 | 58 | 0 (±8) | ±15 | 0.952 (0.946–0.957) | 5.6 |
Reader 1 vs trained assistants | 794 | 1,073 (±292) | −36 (±213) | ±418 | 151 | −2 (±18) | ±34 | 0.759(0.728–0.787) | 14.0 |
Reader 2 vs trained assistants | 793 | 1,070 (±289) | −42 (±208) | ±408 | 147 | −3 (±18) | ±34 | 0.762 (0.731–0.790) | 13.8 |
Reader 1 vs computer analysis | 655 | 1,215 (±371) | −313 (±409) | ±801 | 289 | −22 (±26) | ±51 | 0.350 (0.281–0.415) | 23.8 |
Reader 2 vs computer analysis | 658 | 1,210 (±367) | −321 (±411) | ±806 | 291 | −22 (±26) | ±51 | 0.330 (0.260–0.396) | 24.0 |
Trained assistants vs computer analysis | 654 | 1,236 (±407) | −275 (±367) | ±719 | 259 | −19 (±24) | ±48 | 0.519 (0.461–0.573) | 21.0 |