. 2020 Nov 19;15:3003–3012. doi: 10.2147/COPD.S268894

Table 3.

Borg Scale Scoring, Stopping Reasons and Ergospirometry Results from the Endurance Tests in Study A and Study B

Study	Endurance Test	Borg Dyspnea Score, at End	Borg Leg Discomfort Score, at End	Reason for Stopping Exercise, n (%)				Ergospirometry results
Study	Endurance Test	Borg Dyspnea Score, at End	Borg Leg Discomfort Score, at End	Dyspnea	Dyspnea and Leg Discomfort	Leg Discomfort	Other Reason^a	Peak VO₂ (L/min)	Peak VCO₂ (L/min)	Peak VE (L/min)	Peak RR (min⁻¹)
A	Standard	8.9 ± 1.1	17.7 ± 1.5	6 (40%)	7 (47%)	1 (7%)	1 (7%)	1.46 ± 0.33	1.59 ± 0.30	67 ± 15	46 ± 7
A	New	9.1 ± 1.1	18.1 ± 1.8	6 (40%)	4 (27%)	5 (33%)	0	1.50 ± 0.37	1.64 ± 0.39	69 ± 15	46 ± 8

B	Standard	7.7 ± 2.4	16.9 ± 2.9	7 (39%)	6 (33%)	4 (22%)	1 (6%)	1.41 ± 0.31	1.48 ± 0.36	61 ± 16	40 ± 6
B	New	7.7 ± 2.4	17.2 ± 2.2	5 (28%)	7 (39%)	5 (28%)	1 (6%)	1.39 ± 0.33	1.48 ± 0.41	63 ± 17	40 ± 7

Notes: Values are mean ± standard deviation unless otherwise specified. ^a For specifications see Table S2, S4 and S5.

Abbreviations: VE, minute ventilation; RR, respiratory rate.