Federal University of Uberlandia.
Associate Graduate Program in Physical Education UPE/UFPB.
Res Q Exerc Sport. 2022 Dec;93(4):749-757. doi: 10.1080/02701367.2021.1917756. Epub 2021 Oct 28.
: The aim of this study was to analyze the blood pressure (BP) and heart rate variability (HRV) responses in untrained postmenopausal women submitted to acute single sessions of high-intensity interval training (HIT). : Sixteen postmenopausal women (59.9 ± 5.6 years, 26.7 ± 3.0 kg/m) participated in a random order of two acute sessions in a balanced crossover format: control without exercise in sitting position or HIT session. BP and heart rate (HR) were recorded before and during 60 min following the sessions. : Diastolic (DBP), mean BP (MBP), and double product (DPO) showed interaction ( < .01). DBP, MBP, and DPO increased ( < .01) after HIT but not after the control session. The area under the curve (AUC) of DBP ( = .02) and DPO ( < .01) were different between conditions. Time and frequency indices of HRV presented interaction ( < .05) which impaired these indices post-HIT, but not post-control. The AUC of time and frequency HRV indices were different between conditions. : A single session of HIT may increase BP and cardiac stress and cause perturbation of the autonomic function in untrained postmenopausal women.
本研究旨在分析未经训练的绝经后女性在单次急性高强度间歇训练（HIT）后血压（BP）和心率变异性（HRV）的反应。 16 名绝经后女性（59.9±5.6 岁，26.7±3.0 kg/m）以平衡交叉的方式随机进行两次急性训练：静坐无运动的对照组或 HIT 组。在训练前后 60 分钟内记录 BP 和心率（HR）。舒张压（DBP）、平均 BP（MBP）和双乘积（DPO）均表现出交互作用（<0.01）。HIT 后 DBP、MBP 和 DPO 均升高（<0.01），而对照组则无此变化。DBP（=0.02）和 DPO（<0.01）的 AUC 在两种情况下有所不同。HRV 的时间和频率指数表现出交互作用（<0.05），这会影响 HIT 后的这些指数，但不影响对照组后的指数。HRV 的时间和频率指数的 AUC 在两种情况下也有所不同。 单次 HIT 可能会增加 BP 和心脏压力，并导致未经训练的绝经后女性自主功能紊乱。
