Costa E C, Dantas T C B, de Farias Junior L F, Frazão D T, Prestes J, Moreira S R, Ritti-Dias R M, Tibana R A, Duhamel T A
Department of Physical Education, Federal University of Rio Grande do Norte, Natal, RN, Brazil.
Department of Physical Education, Federal University of Vale do São Francisco, Petrolina, PE, Brazil.
Int J Sports Med. 2016 Dec;37(13):1038-1043. doi: 10.1055/s-0042-112029. Epub 2016 Sep 27.
Recently, post-exercise blood pressure (BP) has been considered a predictive tool to identify individuals who are responsive or not to BP reductions with exercise training (i. e., "high" and "low responders"). This study aimed to analyze the inter- and intra-individual BP responsiveness following a single bout of high-intensity interval exercise (HIIE) and continuous exercise (CE) in normotensive men (n=14; 24.5±4.2 years). Mean change in BP during the 60 min period post-exercise was analyzed and minimal detectable change (MDC) was calculated to classify the subjects as "low" (no post-exercise hypotension [PEH]) and "high responders" (PEH occurrence) following each exercise protocol (inter-individual analysis). The MDC for systolic and diastolic BP was 5.8 and 7.0 mmHg. In addition, a difference equal/higher than MDC between the exercise protocols was used to define an occurrence of intra-individual variability in BP responsiveness. There were "low" and "high" PEH responders following both exercise protocols (inter-individual variability) as well as subjects who presented higher PEH following a specific exercise protocol (intra-individual variability between exercise protocols). These results were observed mainly for systolic BP. In summary, PEH is a heterogeneous physiological phenomenon and, for some subjects, seems to be exercise-protocol dependent. Further investigations are necessary to confirm our preliminary findings.
最近，运动后血压已被视为一种预测工具，用于识别那些对运动训练引起的血压降低有反应或无反应的个体（即“高反应者”和“低反应者”）。本研究旨在分析血压正常的男性（n = 14；24.5±4.2岁）在进行单次高强度间歇运动（HIIE）和持续运动（CE）后个体间和个体内的血压反应性。分析了运动后60分钟内血压的平均变化，并计算了最小可检测变化（MDC），以将受试者分类为每种运动方案后的“低反应者”（无运动后低血压[PEH]）和“高反应者”（出现PEH）（个体间分析）。收缩压和舒张压的MDC分别为5.8和7.0 mmHg。此外，运动方案之间等于或高于MDC的差异用于定义血压反应性个体内变异性的发生情况。两种运动方案后均有“低”和“高”PEH反应者（个体间变异性），以及在特定运动方案后出现更高PEH的受试者（运动方案之间的个体内变异性）。这些结果主要在收缩压方面观察到。总之，PEH是一种异质性生理现象，对一些受试者来说，似乎取决于运动方案。需要进一步研究来证实我们的初步发现。
