TABLE 4

Effect size and power test for comparison between flow resistance and pressure threshold devices during inspiratory load

MIP20% groupMIP40% group
Effect size Cohen's dZPowerEffect size Cohen's dZPower
VT,CW6.50.9920.99
EIV1.360.991.30.99
EEV0.20.110.20.11
SCM0.070.061.190.99
SCL0.570.510.940.92
  • MIP: maximal inspiratory pressure; VT,CW: tidal volume in chest wall; EIV: end-inspiratory volume; EEV: end-expiratory volume; SCM: sternocleidomastoid; SCL: scalene.