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Table 2 Association between wMRT and exercise capacity

From: Oxygen kinetics during 6-minute walk tests in patients with cardiovascular and pulmonary disease

  VO2SS(ml/min) 6MWD (m) MRT (min)
  β p R2 β p R2 β p R2
COPD -399.8 <0.001 0.411 199.7 0.007 0.086 0.40 <0.001 0.31
Restrictive -479.3 <0.001 0.443 503.5 <0.001 0.299 0.35 0.005 0.19
PAH -425.9 <0.001 0.608 236.5 <0.001 0.208 0.20 0.032 0.09
CHF -276.7 0.074 0.122 528.7 0.004 0.282 0.31 0.039 0.16
  1. Univariate regression is expressed as β and R2. VO2SS = oxygen uptake; 6MWD = 6-minute walk distance; MRT: mean response time; wMRT: mean response time corrected for work rate.