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Percentage of maximal muscle activation of a) diaphragm (EMGdi/EMGdi, max), b) scalene (EMGsca/EMGsca, max), c) abdominal (EMGabd/EMGSabd, max) muscles, and d) Pdi, e) Poes and f) Pga, during constant work rate exercise pre- and post-IMT. Dotted lines indicate the end of the endurance test for pre- and post-IMT. Red arrows indicate swing pressures pre-IMT and black arrows indicate swing pressures post-IMT.
