Antioxidant treatment prevents contractile dysfunction in PH diaphragm muscles.

<p><i>A</i>: typical examples (120 Hz stimulation frequency, 600 ms train duration) of specific force in diaphragm fiber bundles from CNT and PH rats with or without EUK-134 (EUK) treatment. <i>B</i>: specific force-frequency relationship. Data show mean ± SD for 7–10 rats in each group. ^**<i>P</i> < 0.01 <i>vs</i>. CNT.