Table 4.
Metabolic data
| Variable (n=70) | BCCH protocol (median±IQR) | Bruce protocol (median±IQR) | rs | p-Value | Mean bias (LOA) |
| VO2 (mL/min) | 2897 (2342–3807) | 2901 (2427–3654) | 0.94 | 0.022 | 34.6* (−269 to 338) |
| VO2 (mL/min/kg) | 56.8 (51.7–61.8) | 57.4 (51.3–62.6) | 0.99 | 0.043 | 0.7 (−5.3 to 6.7) |
| VE (L/min) | 96.7 (72.0–110.2) | 99.2 (75.6–120.0) | 0.95 | <0.001 | 3.0 (−14.1 to 10.0) |
| Total exercise time (s) | 915 (829–1005) | 810 (750–919) | 0.67 | NS | −63 (−296 to 169) |
| Peak heart rate (bpm) | 196 (191–202) | 195 (189–200) | 0.78 | 0.041 | −1* (−11 to 9) |
| RER | 1.00 (0.96–1.02) | 1.03 (0.99–1.07) | 0.48 | <0.001 | 0.05 (−0.07 to 0.16) |
| METS | 16.2 (14.8–17.7) | 16.4 (14.7–17.9) | 0.89 | <0.001 | 0.2* (−1.3 to 1.6) |
*Indicates graphed in figure 1.
BCCH, British Columbia Children’s Hospital; bpm, beats per minute; LOA, limits of agreements; METS, metabolic equivalents; RER, respiratory exchange ratio; VE, minute ventilation; VO2,peak oxygen consumption.