Skip to main content
. Author manuscript; available in PMC: 2017 Mar 1.
Published in final edited form as: Med Sci Sports Exerc. 2016 Mar;48(3):353–362. doi: 10.1249/MSS.0000000000000775

Table 3.

Linear regressions between differences in VE and differences in CircP or GXCAP.

R2 (95% CL) Intercept Slope Std. slope P-value
ΔVE and ΔCircP (2 min post-exercise minus baseline)
Normal recovery
 CTL 0.43 (0.00, 0.68) −0.14 0.99 0.65 0.03
 HF 0.03 (0.00, 0.35) 7.97 0.44 0.17 0.61
Regional circulatory occlusion
 CTL 0.79 (0.37, 0.89) −10.16 3.68 0.90 <0.01
 HF 0.08 (0.00, 0.43) 3.81 0.56 0.29 0.39
RCO+CO2
 CTL 0.01 (0.00, 0.27) −4.34 0.23 0.08 0.81
 HF 0.00 (0.00, 0.00) 11.47 0.00 0.00 0.99
%VE and %CircP (2 min post-exercise as percentage of baseline)
Normal recovery
 CTL 0.26 (0.00, 0.57) 5.86 0.26 0.51 0.11
 HF 0.13 (0.00, 0.48) 17.28 0.34 0.37 0.27
RCO
 CTL 0.63 (0.11, 0.79) −39.9 3.00 0.81 <0.01
 HF 0.19 (0.00, 0.53) 12.18 0.24 0.44 0.17
RCO+CO2
 CTL 0.36 (0.00, 0.64) −36.81 0.61 0.60 0.05
 HF 0.00 (0.00, 0.00) 40.00 −0.05 −0.06 0.87
ΔVE and ΔGXCAP (2 min post-exercise minus baseline)
Normal recovery
 CTL 0.00 (0.00, 0.00) −12.94 −0.10 −0.01 0.97
 HF 0.03 (0.00, 0.35) 15.01 2.84 0.17 0.62
Regional circulatory occlusion
 CTL 0.49 (0.02, 0.72) −118.55 15.46 0.70 0.02
 HF 0.06 (0.00, 0.40) −44.31 2.29 0.24 0.47
RCO+CO2
 CTL 0.03 (0.00, 0.35) −41.87 −2.03 −0.17 0.62
 HF 0.04 (0.00, 0.37) −2.87 1.60 0.20 0.56
%VE and %GXCAP (2 min post-exercise as percentage of baseline)
Normal recovery
 CTL 0.02 (0.00, 0.32) −7.50 0.05 0.13 0.70
 HF 0.06 (0.00, 0.41) 5.82 0.33 0.25 0.45
Regional circulatory occlusion
 CTL 0.55 (0.05, 0.75) −65.56 2.73 0.74 <0.01
 HF 0.03 (0.00, 0.36) −13.2 −0.09 −0.17 0.61
RCO+CO2
 CTL 0.29 (0.00, 0.60) −39.90 0.32 0.54 0.09
 HF 0.00 (0.00, 0.00) 4.78 0.04 0.07 0.85

Univariate linear regressions between differences (Δ or %) in minute ventilation (VE) and differences (Δ or %) in circulatory power (CircP) or pulmonary vascular capacitance (GXCAP). VE was always the independent variable. R2=coefficient of determination, and upper and lower 95% confidence limits. Std.slope=standardized slope, which is the change in the dependent variable expressed as a fraction of the standard deviation, per standard deviation of the change in the independent variable.