Mean values of exercise testing and their limits of agreement between two treadmill protocols (Bruce and RIS)
| Exercise protocol | Endurance time (mins) | Maximal heart rate (beats/min) | VO2max (ml/min) | VAT (ml/min) | OUES | RER at peak exercise |
|---|---|---|---|---|---|---|
| Bruce | 13.5 (1.9) | 197 (8) | 1690 (860) | 1160 (700) | 1790 (880) | 1.08 (0.08)1-150 |
| RIS | 5.0 (1.9) | 194 (6) | 1720 (670) | 1160 (580) | 1790 (870) | 1.12 (0.12) |
| Mean (SD) of difference | −3 (7) | 37 (190) | 0.4 (180) | −6 (160) | 0.04 (0.07) | |
| Limit of agreement | +11 (+5%) to −17 (−8%) | +410 (+24%) to −340 (−20%) | +360 (+31%) to −360 (−31%) | +310 (+17%) to −320 (−18%) | +0.18 (+16%) to −0.10 (−9%) |
Data are expressed as mean (SD). Limits of agreement are expressed as absolute values and the percentages of the mean values of the two sessions in parentheses.
↵1-150 p < 0.05 between the two protocols.
OUES, oxygen uptake efficiency slope; RER, the respiratory exchange ratio; RIS, rapidly increasing staged protocol; VAT, oxygen uptake at the ventilatory anaerobic threshold; VO2max, maximal oxygen uptake.