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Figure 1 Weekly values of maximal inspiratory pressure (PImax, mean ± SD) for the placebo-inspiratory muscle training group (P-IMT) and for the inspiratory muscle training group (IMT). After 12 weeks in the program, all training was stopped, and 11 patients from each group were re-evaluated at 48 weeks. *Two-way ANOVA for repeated measures: p < 0.01 for group, training, and interaction effects.  Significantly (p < 0.05) different from baseline evaluation by the Tukey test.
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