School of Technology and Sciences, São Paulo State University (UNESP), 19060-900 Presidente Prudente, Brazil.
Faculty of Health Sciences, The University of Sydney, 456P+HW Sydney, Australia.
Medicina (Kaunas). 2019 Aug 26;55(9):532. doi: 10.3390/medicina55090532.
Metabolic syndrome (MetS) influences the autonomic modulation, increasing the risk of cardiovascular events, which demands the identification of effective treatments for this population. Considering this, the study has the objective of evaluating the effects of periodized aerobic interval training (AIT) on geometrical methods of heart rate variability (HRV) on individuals with MetS. 52 individuals with MetS were considered for analysis. They were divided into two groups: aerobic interval training group (AITG; = 26) and control group (CG; = 26). The AITG performed 16 weeks of periodized AIT. For HRV analysis, the heart rate was recorded beat-by-beat at the beginning and the end of the AIT program and geometrical methods were used for analysis. significant increase was observed for triangular index (RRtri, -1.25 ± 0.58 vs. 1.41 ± 0.57), standard deviation of distances from diagonal to points (SD1, -0.13 ± 1.52 vs. 4.34 ± 1.49), and standard deviation of distances from points to lines (SD2, -2.14 ± 3.59 vs. 11.23 ± 3.52) on AITG compared to CG. Significant differences were not observed for triangular interpolation of normal heartbeats interval histogram (TINN, -4.05 ± 17.38 vs. 25.52 ± 17.03) and SD1/SD2 ratio (0.03 ± 0.02 vs. 0.00 ± 0.02). Qualitative analysis of the Poincaré plot identified increase on dispersion of both short and long-term intervals between successive heartbeats (RR interval) on AITG after the AIT program. geometric indices of HRV suggest an increase in cardiac autonomic modulation in individuals with MetS after 16 weeks of periodized AIT.
代谢综合征（MetS）会影响自主神经调节，增加心血管事件的风险，因此需要为该人群寻找有效的治疗方法。有鉴于此，本研究旨在评估周期性有氧间歇训练（AIT）对代谢综合征患者心率变异性（HRV）几何方法的影响。 共有 52 名代谢综合征患者符合纳入标准。他们被分为两组：有氧间歇训练组（AITG；n = 26）和对照组（CG；n = 26）。AITG 进行了 16 周的周期性 AIT。为了进行 HRV 分析，在 AIT 计划开始和结束时逐拍记录心率，并使用几何方法进行分析。 与 CG 相比，AITG 中三角指数（RRtri，-1.25 ± 0.58 对 1.41 ± 0.57）、从对角线到点的距离标准差（SD1，-0.13 ± 1.52 对 4.34 ± 1.49）和从点到线的距离标准差（SD2，-2.14 ± 3.59 对 11.23 ± 3.52）均显著增加。AITG 与 CG 相比，正常心跳间期直方图三角内插（TINN，-4.05 ± 17.38 对 25.52 ± 17.03）和 SD1/SD2 比值（0.03 ± 0.02 对 0.00 ± 0.02）无显著差异。Poincaré 图的定性分析表明，AIT 后，AITG 中连续心跳（RR 间期）的短期和长期间隔的离散度均增加。 HRV 的几何指标表明，16 周的周期性 AIT 后，代谢综合征患者的心脏自主神经调节增强。
