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Table 5 Linear regression equations for the exercise mode comparisons of the estimated individual V̇O2 values

From: Interchangeability and optimization of heart rate methods for estimating oxygen uptake in ergometer cycling, level treadmill walking and running

 

y-intercept (95% CI)

slope (95% CI)

r2

Model 1: Walk & Cyc

0.178 (0.077 to 0.279)

0.970 (0.924 to 1.016)

0.913

Model 2: Walk & Cyc

0.138 (0.073 to 0.202)

0.992 (0.963 to 1.021)

0.965

Model 1: Run & Cyc

0.276 (0.209 to 0.344)

0.883 (0.853 to 0.914)

0.952

Model 2: Run & Cyc

0.093 (0.040 to 0.145)

0.968 (0.944 to 0.992)

0.975

Model 1: Run & Walk

0.218 (0.136 to 0.300)

0.862 (0.826 to 0.897)

0.933

Model 2: Run & Walk

0.004 (−0.060 to 0.067)

0.955 (0.928 to 0.982)

0.967

  1. The linear regression equations are based on the individual V̇O2 values of all participants (n = 24), ranging between 25 and 85%HRR (cf. Figure 3). Walk = walking, Cyc = cycling, and Run = running
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BMC Medical Research Methodology

ISSN: 1471-2288

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