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

Table 2.

Results from the Endurance Tests in Study A and Study B

Study A Study B
Standard ET New ETA Standard ET New ETB
Workload
Workload at start, W 80 ± 17 42 ± 9 75 ± 24 30 ± 9
Workload at 3 min, W 80 ± 17 79 ± 17 75 ± 24 70 ± 23
Workload at end, W 80 ± 17 89 ± 23 75 ± 24 78 ± 27
SD in % of Work load at end 21% 26% 32% 34%
Range of Work load at end, W 53–113 68–153 33–137 33–146
Endurance time
Endurance time, min 10.9 ± 5.6 10.3 ±2 0.5 9.9 ± 5.6 10.7 ± 3.0
SD in % of endurance time 51% 24% 57% 28%
Median endurance time, min 12.1 10.7 7.9 9.4
Range of endurance time, min 3.3–20.9 6.2–14.7 2.8–21.7 7.4–16.3
Levene’s test: Standard vs New F (1.28) = 12.96; p=0.001 F (1.34) = 4.51; p=0.041
Work performed
Work capacity, kWs 57 ± 38 46 ± 21 46 ± 35 42 ± 25
SD in % of work performed 69% 48% 76% 59%
Median Work capacity, kWs 54 39 40 34
Range of Work capacity, kWs 12–142 18–86 9–143 12–97
Levene’s test: Standard vs New F (1.28) = 3.66; p=0.066 F (1.34) = 0.168; p=0.46

Notes: Values are mean ± standard deviation unless otherwise specified.

Abbreviation: vs, versus.