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Table 2 Baseline and post-intervention data (mean ± SD) on functional and respiratory variables by intervention group in 65 followed patients

From: Safety and efficacy of inspiratory muscle training for preventing adverse outcomes in patients at risk of prolonged hospitalisation

  IMT group (N = 31) Sham IMT group (N = 34) p valueb
Baseline Fourth week Baseline Fourth week
MIP (cmH2O) − 57.3 ± 27.1 − 87.3 ± 28.2a − 67.6 ± 34.7 − 60.3 ± 25.4 < 0.01
MVV (litres) 11.9 ± 5.2 27.1 ± 15.5a 12.3 ± 6.3 12.9 ± 7.6 0.15
MRC 50.0 ± 10.8 55.1 ± 8.0a 51.1 ± 9.9 51.3 ± 8.9 0.11
BI 76.5 ± 24.0 87.5 ± 16.5a 74.8 ± 22.2 76.2 ± 19.2 0.02
FIM 4.7 ± 2.0 6.0 ± 1.7a 4.6 ± 2.0 5.0 ± 1.9 0.06
  1. IMT group inspiratory muscle training group, Sham IMT group sham inspiratory muscle training group, MIP maximal inspiratory pressure, MVV maximum voluntary ventilation, MRC Medical Research Council, BI Barthel Index, FIM Functional Independence Measure
  2. aIntra-group analysis of baseline and fourth week data (p value < 0.05);
  3. bComparing baseline- with fourth-week data between groups