Table 4

Metabolic data

Variable (n=70)BCCH protocol (median±IQR)Bruce protocol (median±IQR)rs p-ValueMean bias (LOA)
VO2 (mL/min)2897 (2342–3807)2901 (2427–3654)0.940.02234.6* (−269 to 338)
VO2 (mL/min/kg)56.8 (51.7–61.8)57.4 (51.3–62.6)0.990.0430.7 (−5.3 to 6.7)
VE (L/min)96.7 (72.0–110.2)99.2 (75.6–120.0)0.95<0.0013.0 (−14.1 to 10.0)
Total exercise time (s)915 (829–1005)810 (750–919)0.67NS−63 (−296 to 169)
Peak heart rate (bpm)196 (191–202)195 (189–200)0.780.041−1* (−11 to 9)
RER1.00 (0.96–1.02)1.03 (0.99–1.07)0.48<0.0010.05 (−0.07 to 0.16)
METS16.2 (14.8–17.7)16.4 (14.7–17.9)0.89<0.0010.2* (−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.