Skip to main content
. 2021 Mar 12;121(6):1783–1794. doi: 10.1007/s00421-021-04601-y

Table 4.

Comparison P0 with P1-4: Bias, 95% CI, lower and upper bound, differences in %, CV, ICC and 95% CI of maximal values, thresholds, and slopes

Variable Comparison P0 with Protocol Bias 95% CI Lower bound Upper bound Diff in % Lower bound % Upper bound % CV% ICC 95% CI

HR max

min−1

 P1 1.6 (0, 3.1) − 6.7 9.9 0.8 − 3.4 5.1 2.2 0.81 (0.64, 0.90)
P2 − 0.1 (− 1.5, 1.4) − 7.7 7.6 0 − 3.9 3.8 2.0 0.88 (0.77, 0.94)
P3 − 1.1 (− 3.4, 1.2) − 13.4 11.2 − 0.5 − 6.9 5.9 3.2 0.86 (0.73, 0.93)
P4 0.9 (− 0.6, 2.4) − 6.9 8.8 0.5 − 3.5 4.4 2.1 0.89 (0.79, 0.95)

Pmax/kg

Watt/kg

 P1 0.0 (− 0.1, 0.1) − 0.5 0.5 0.3 − 13.0 13.5 6.5 0.90 (0.80, 0.95)
P2 0.4 (0.3, 0.5) − 0.1 0.8 9.4 − 0.8 19.7 5.7 0.80 (0.63, 0.90)
P3 0.5 (0.4, 0.6) − 0.0 1.0 11.5 − 0.6 23.5 6.4 0.88 (0.77, 0.94)
P4 0.3 (0.2, 0.4) − 0.1 0.7 7.7 − 3.5 19.0 5.8 0.74 (0.53, 0.86)

VO2peak/kg

ml/kg/min

 P1 0.2 (− 1.0, 1.4) − 6.1 6.5 0.7 − 11.7 13.1 6.5 0.90 (0.80, 0.95)
P2 − 0.9 (− 1.8, − 0.1) − 5.5 3.6 − 1.6 − 10.6 7.4 4.7 0.95 (0.90, 0.98)
P3 0.3 (− 0.9, 1.4) − 5.9 6.4 0.8 − 12.2 13.8 6.2 0.95 (0.90, 0.98)
P4 − 0.1 (− 1.3, 1.1) − 6.2 6.1 0.1 − 12.5 12.6 6.5 0.83 (0.68, 0.91)

O2 Pulse

ml/min−1

 P1 − 0.1 (− 0.4, 0.3) − 1.9 1.7 0 − 11.2 11.1 5.8 0.97 (0.94, 0.99)
P2 − 0.4 (− 0.7, − 0.1) − 2.0 1.3 − 2.1 − 11.1 7.0 4.9 0.98 (0.96, 0.99)
P3 0.2 (− 0.1, 0.5) − 1.4 1.8 1.5 − 7.9 10.8 4.9 0.99 (0.98, 1.00)
P4 − 0.2 (− 0.6, 0.1) − 2.0 1.6 − 1.2 − 12.7 10.3 6.1 0.95 (0.90, 0.98)

VO2/kg_VT

ml/kg/min

 P1 − 0.2 (− 0.9, 0.5) − 3.8 3.4 − 1.7 − 19.7 16.4 9.1 0.88 (0.77, 0.94)
P2 0.2 (− 0.3, 0.7) − 2.6 3.0 0.6 − 15.0 16.2 7.8 0.87 (0.75, 0.93)
P3 0.2 (− 0.5, 1.0) − 3.5 4.0 0.7 − 16.6 18.0 7.8 0.97 (0.94, 0.99)
P4 0.3 (− 0.3, 0.9) − 3.0 3.6 1.6 − 15.8 18.9 8.4 0.87 (0.75, 0.93)

VO2/kg_2mmol

ml/kg/min

 P1 − 0.4 (− 1.8, 1.0) − 7.8 7.0 − 1.5 − 26.0 23.1 13.5 0.68 (0.44, 0.83)
P2 − 1.8 (− 2.8, − 0.8) − 7.1 3.5 − 5.8 − 25.4 13.8 9.4 0.84 (0.70, 0.92)
P3 0.4 (− 0.7, 1.5) − 5.5 6.3 0.9 − 18.3 20.2 9.0 0.95 (0.90, 0.98)
P4 − 0.2 (− 1.3, 1.0) − 6.3 6.0 − 0.4 − 21.7 20.9 11.0 0.80 (0.63, 0.90)

VO2/kg_4mmol

ml/kg/min

 P1 1.2 (− 1.2, 3.6) − 11.6 13.9 2.0 − 22.6 26.7 17.0 0.60 (0.32, 0.78)
P2 − 1.2 (− 2.1, − 0.3) − 5.9 3.4 − 2.7 − 16.0 10.6 6.3 0.90 (0.80, 0.95)
P3 0.3 (− 0.6, 1.3) − 4.8 5.5 0.7 − 12.0 13.4 6.3 0.96 (0.92, 0.98)
P4 0.4 (− 0.6, 1.5) − 5.1 6.0 1.3 − 13.1 15.6 7.6 0.85 (0.71, 0.92)

VO2/kg_IAT

ml/kg/min

 P1 − 0.5 (− 1.6, 0.7) − 6.7 5.8 − 1.0 − 19.4 17.3 9.0 0.85 (0.71, 0.92)
P2 − 1.8 (− 2.7, − 0.8) − 6.7 3.2 − 4.2 − 18.1 9.7 6.8 0.90 (0.80, 0.95)
P3 1.2 (0.3, 2.0) − 3.5 5.8 2.9 − 10.0 15.8 6.0 0.97 (0.94, 0.99)
P4 − 0.1 (− 1.3, 1.2) − 6.7 6.5 0.6 − 19.4 20.5 9.8 0.83 (0.68, 0.91)
Slope VE/VCO2 P1 − 1.1 (− 2.2, − 0.1) − 6.7 4.5 − 3.5 − 22.7 15.6 10.1 0.71 (0.48, 0.85)
P2 1.8 (0.3, 3.3) − 6.0 9.7 6.7 − 22.6 36.0 14.2 0.46 (0.14, 0.70)
P3 0.4 (− 0.7, 1.5) − 5.3 6.1 1.4 − 18.8 21.6 9.7 0.84 (0.70, 0.92)
P4 − 0.3 (− 1.3, 0.6) − 5.3 4.6 − 1.2 − 17.5 15.2 8.2 0.81 (0.64, 0.90)
OUES P1 − 19.5 (− 61.0, 22.1) − 237.5 198.5 − 1.3 − 17.5 14.9 8.8 0.92 (0.84, 0.96)
P2 − 47.0 (− 99.5, 5.5) − 322.4 228.4 − 3.0 − 26.6 20.6 9.7 0.91 (0.82, 0.96)
P3 − 13.3 (− 59.1, 32.6) − 254.1 227.5 − 0.6 − 17.3 16.1 8.8 0.96 (0.92, 0.98)
P4 − 16.6 (− 50.1, 17.0) − 192.7 159.6 − 0.7 − 14.9 13.5 7.0 0.93 (0.86, 0.97)