Table 1

Peak exercise variables comparing results from treadmill and cycle

	Group	Treadmill	Cycle	p Value
Data are expressed as mean (SD).
*<0.0005; †<0.05; ‡not significant; §<0.005; AT, anaerobic threshold; HR/V˙o₂ slope, slope relating heart rate to oxygen consumption during exercise; Peak V˙e, minute expired ventilation at peak.
pV˙o₂ (ml/kg/min)	Patient	21.1 (5.5)	18.2 (3.6)	0.0012
pV˙o₂ (ml/kg/min)	Control	45.9 (13.2)*	36.0 (9.5)*	0.003
AT (ml/kg/min)	Patient	15.7 (5.2)	11.9 (2.3)	0.01
AT (ml/kg/min)	Control	26.5 (9.7)*	27.1 (10.0)*	0.47
V˙e/V˙co₂ slope	Patient	35.3 (8.7)	32.0 (7.5)	0.0012
V˙e/V˙co₂ slope	Control	28.2 (5.8)†	26.8 (2.1)†	0.792
Sub V˙e/V˙co₂ slope	Patient	34.0 (7.7)	30.7 (6.9)	0.011
Sub V˙e/V˙co₂ slope	Control	25.3 (4.5)†	25.9 (5.0)†	0.69
HR/V˙o₂ slope	Patient	1.68 (0.23)	1.50 (0.24)	0.024
HR/V˙o₂ slope	Control	1.86 (0.13)†	1.71 (0.31)†	0.068
Peak V˙e (l/min)	Patient	70.7 (15.9)	54.7 (11.9)	0.0045
Peak V˙e (l/min)	Control	109.0 (23.7)*	97.3 (32.1)*	0.1125
RER	Patient	1.05 (0.07)	1.03 (0.06)	0.64
RER	Control	1.03 (0.05)‡	1.03 (0.11)‡	0.80
Borg/V˙e slope	Patient	0.16 (0.05)	0.18 (0.06)	0.46
Borg/V˙e slope	Control	0.09 (0.03)§	0.11 (0.04)§	0.32