Table 5—

Selected parameters during incremental cardiopulmonary exercise testing of patients with pulmonary function impairment

Patient no.	WR_max % pred	V'_O₂,max % pred	BR L·min⁻¹	HRR beats·min⁻¹	V_D/V_T at rest	V_D/V_T at peak exercise	Oxygen pulse mL·beat⁻¹	AT%
1	59.6	49.4	47.3	41	0.5	0.3	4.9	ND
2	83.3	62.1	27.7	12	0.7	0.4	5.2	ND
3	76.5	75.0	31.1	−8	0.5	0.2	6.4	70.8
4	70.6	68.6	20.2	11	0.6	0.3	5.9	68.6
5	70.7	69.9	12.0	−8	0.5	0.3	5.1	42.0
6	62.0	44.4	69.7	64	0.6	0.3	9.6	ND
7	98.8	87.2	−8.9	−8	0.5	0.3	6.4	75.2
8	79.3	82.0	28.5	−15	0.4	0.3	8.2	68.4
9^#
10^¶	0	32.3	50.3	59	0.4	0.4	4.8	ND
11	76.9	77.3	22.8	25	0.6	0.3	10.3	ND
12	63.4	50.9	93.3	15	0.4	0.4	6.4	51.7
13	74.3	68.8	21.4	11	0.4	0.4	6.2	67.4
14	60.0	66.1	46.4	29	0.6	0.3	6.1	48.2
15	91.9	89.2	10.5	6	0.3	0.3	7.2	73.9
16	85.8	70.6	59.0	−14	0.3	0.3	5.3	61.4
17	66.5	97.2	2.3	−37	0.5	0.3	10.3	85.9
18	89.2	100.1	38.1	6	0.4	0.2	12.4	75.7
19	114.2	113.8	67.0	−1	0.6	0.2	9.3	87.1
20	67.2	67.7	32.3	−9	0.5	0.3	5.4	57.6
21	69.2	70.4	7.2	7	0.6	0.3	6.2	64.2
22	59.7	53.2	37.8	15	0.6	0.4	5.0	ND
23	111.8	99.6	5.1	−22	0.6	0.3	7.1	79.8

WR_max: maximum work rate
V'_O₂,max: maximum oxygen uptake
V_D/V_T: ratio of dead space to tidal volume
BR: breathing reserve=maximal voluntary ventilation–minute ventilation at peak exercise
HRR: heart rate reserve=predicted maximum heart rate–heart rate at peak exercise
AT%: anaerobic threshold per cent, AT%=(V'_O₂ at AT/predicted V'_O₂,max)×100
ND: anaerobic threshold not detected
^#: patient no. 9 refused to participate in exercise testing
^¶: patient no. 10 terminated exercise at the end of unloaded cycling
n=23