mouth pressure (cmH2O)E baselineE follow-upp (t-test)
GirlsMIP58.3±23.96.9±1.70.000
 MEP64.3±23.36.4±1.60.000
BoysMIP76.5±29.57.4±1.70.000
 MEP90.0±33.66.5±1.80.000