Effects of surgical and FFP2/N95 face masks on cardiopulmonary exercise capacity.

Clin Res Cardiol · 2020 · PMC7338098 · PMID 32632523

Europe PMC DOI

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a statistical trendno p-value reported

Prolonged and more negative ITP increases the cardiac preload and may lead to higher SV at the one hand which is consistent with our results showing a statistical trend towards higher SV while wearing ffpm or sm [ 20 , 21 ].

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.