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Revista Portuguesa de Cardiologia 40 (2021) 797---799 www.revportcardiol.org Revista Portuguesa de Cardiologia Portuguese Journal of Cardiology EDITORIAL COMMENT Post-exercise hypotension in response to high-intensity interval exercise: Potential mechanisms Hipotensão pós-esforc¸o em resposta a exercício intervalado de alta intensidade: mecanismos potenciais Raphael José Perrier-Melo a,∗, Antônio Henrique Germano-Soares b, Aline Freitas Brito b, Iago Vilela Dantas c, Manoel da Cunha Costa b a Department of Physical Education, Faculdade Pernambucana de Saúde, Recife, Pernambuco, Brazil b Department of Physical Education, University of Pernambuco, Recife, Pernambuco, Brazil c Department of Physical Education, Federal University of Pernambuco, Recife, Pernambuco, Brazil Available online 12 August 2021 Post-exercise hypotension (PEH) is a phenomenon charac- terized by a decrease in systolic and/or diastolic blood pressure after a single session of physical exercise,1 in comparison both to resting values (pre-exercise) and to a control condition (without exercise), with no clinical symp- toms (such as syncope). The clinical relevance of PEH is well established, since the reductions in b...