Table 1. Within-group and between-group comparisons of outcome measures.
PH-IMT group (n = 8) | p valuea | FH-IMT group (n = 6) | p valuea | Control group (n = 7) | p valuea | p valueb | ||||
---|---|---|---|---|---|---|---|---|---|---|
Pre | Post | Pre | Post | Pre | Post | |||||
Mean difference | Mean difference | Mean difference | ||||||||
Asym Drel | 0.05 ± 0.05 | 0.09 ± 0.09 | 0.10 ± 0.10 | 0.03 ± 0.04 | 0.07 ± 0.05 | 0.18 ± 0.12 | * | * | ||
0.03 ± 0.08†‡ | −0.06 ± 0.12† | 0.10 ± 0.09‡ | ||||||||
Asym Dcon | 0.13 ± 0.14 | 0.10 ± 0.11 | 0.16 ± 0.12 | 0.08 ± 0.09 | 0.07 ± 0.05 | 0.23 ± 0.10 | * | * | ||
−0.02 ± 0.18†‡ | −0.08 ± 0.17† | 0.15 ± 0.14‡ | ||||||||
Asym TR | 0.12 ± 0.12 | 0.10 ± 0.05 | 0.14 ± 0.10 | 0.11 ± 0.08 | 0.09 ± 0.02 | 0.13 ± 0.09 | ||||
−0.01 ± 0.16 | –0.03 ± 0.16 | 0.03 ± 0.11 | ||||||||
TR-P | 1.65 ± 0.26 | 2.25 ± 0.48 | * | 1.96 ± 0.31 | 2.22 ± 0.33 | 1.66 ± 0.19 | 1.60 ± 0.25 | * | ||
0.59 ± 0.41† | 0.25 ± 0.37†‡ | –0.06 ± 0.24‡ | ||||||||
TR-NP | 1.65 ± 0.32 | 2.12 ± 0.27 | * | 1.75 ± 0.12 | 2.11 ± 0.11 | * | 1.70 ± 0.26 | 1.68 ± 0.32 | * | |
0.46 ± 0.26† | 0.35 ± 0.09† | −0.01 ± 0.30‡ |
aWithin-group comparisons. bBetween-group comparisons. Asym Drel: asymmetry of diaphragm thickness at functional residual capacity; Asym Dcon: asymmetry of diaphragm thickness at total lung capacity; Asym TR: asymmetry of thickening ratio; TR-P: thickening ratio of the paretic side; TR-NP: thickening ratio of the nonparetic side. *p < 0.05. †, ‡Statistical significance (p < 0.05)