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Table 4 Linear regression equations for the estimated V̇O2

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: Cycling

−0.042 (− 0.316 to 0.231)

0.0368 (0.0322 to 0.0415)

0.594

Model 1: Walking

0.004 (−0.265 to 0.274)

0.0381 (0.0335 to 0.0427)

0.617

Model 1: Running

0.141 (−0.096 to 0.378)

0.0343 (0.0303 to 0.0384)

0.628

Model 2: Cycling

−0.135 (− 0.403 to 0.133)

0.0389 (0.0343 to 0.0435)

0.629

Model 2: Walking

−0.027 (− 0.299 to 0.244)

0.0391 (0.0345 to 0.0438)

0.625

Model 2: Running

−0.120 (− 0.370 to 0.130)

0.0391 (0.0349 to 0.0434)

0.663

  1. The linear regression equations are based on the individual V̇O2 values of all participants (n = 24) and the seven intensity levels between 25 and 85%HRR (cf. Fig. 2)
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BMC Medical Research Methodology

ISSN: 1471-2288

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