Group

Elapsed treadmill time (min)

Max treadmill incline (% grade)

Measured VO_2max (ml*kg^-1*min^-1)

HRmax (bpm)

RPEmax

RERmax (VCO₂/VO₂)

R-value to Bruce

# of subjects preferred this test

Bruce

12.02 ± 1.82

16.95 ± 1.33

45.99 ± 7.57

187.69 ± 11.53

17.74 ± 1.50

1.21 ± 0.07

N/A

15

5-5

11.28 ± 2.61

20.12 ± 5.46

44.97 ± 7.71

190.37 ± 8.25

17.63 ± 1.59

1.18 ± 0.06

0.95

21

10-5

8.39 ± 2.41

19.74 ± 4.66

43.99 ± 8.01

186.38 ± 7.10

17.97 ± 1.53

1.17 ± 0.06

0.91

6

ASU

N/A

N/A

N/A

N/A

N/A

N/A

0.91

N/A