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. 2014 May 15;117(2):180–188. doi: 10.1152/japplphysiol.00130.2014

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Fig. 8. — Representative traces of diaphragm (Dia) and external oblique (EO) muscle activity in unanesthetized rats. Integrated EMG trace shows a long-lasting increase in diaphragm amplitude above baseline (dotted white line) corresponds to Dia long-term facilitation (LTF) (arrows on right) following AIH (C, top trace). The raw EMG traces show an increase in amplitude and respiratory frequency following AIH (B), compared with baseline (A). External oblique muscle (C, bottom trace) shows a decrease in EMG amplitude during AIH but not following AIH. Raw EMG traces in EO (D and E) show a reduced amplitude during AIH compared with normoxia. Scaling is the same across panels.