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Correlation between D6MWT or S6MWT and IC in COPD.
Notes: *Statistical significance. Neither pre-6MWT IC (A) nor post-6MWT IC (C) is significantly correlated with distance of 6MWT. Both pre-6MWT IC (B) and post-6MWT IC (D) are significantly correlated with steps of 6MWT.
Abbreviations: 6MWT, 6-minute walk test; D6MWT, distance of 6MWT; IC, inspiratory capacity; S6MWT, steps of 6MWT.
