Žebeljan Ivan, Lučovnik Miha, Dinevski Dejan, Lackner Helmut K, Moertl Manfred G, Vesenjak Dinevski Izidora, Mujezinović Faris
Department for Women's Health, Health Center Lenart, 2230 Lenart v Slovenskih Goricah, Slovenia.
Department of Perinatology, Division of Obstetrics and Gynaecology, University Medical Centre Ljubljana, 1000 Ljubljana, Slovenia.
J Clin Med. 2022 Sep 29;11(19):5777. doi: 10.3390/jcm11195777.
The objective was to assess the effects of prenatal yoga on heart rate variability (HRV) and cardio-respiratory synchronization, used as proxies of autonomic nervous system activity. Sixty-nine healthy pregnant women were included; 33 in a yoga group attending at least one 90-min yoga class weekly throughout pregnancy, and 36 controls not involved in formal pregnancy exercise programs. Measurements of the time domain (SDNN, standard deviation of regular R-R intervals, and RMSSD, square root of mean squared differences of successive R-R intervals) and frequency domain (ln(LF/HF), natural logarithm of low-frequency to high-frequency power) HRV indices, as well as cardio-respiratory synchronization indexes were performed once per trimester before and after yoga or 30-min moderate-intensity walk. A statistical comparison was performed using a three-way analysis of the variance (p < 0.05 significant). Both the time domain and frequency domain HRV indices showed significant shifts towards parasympathetic dominance following yoga when compared to the controls throughout pregnancy (p = 0.002 for SDNN, p < 0.001 for RMSSD, and p = 0.006 for ln(LF/HF), respectively). There was a statistically non-significant trend towards higher synchronization between respiratory frequency and heart rate following yoga vs. controls (p = 0.057). Regular prenatal yoga was associated with enhanced parasympathetic activation persisting throughout pregnancy.
目的是评估产前瑜伽对心率变异性（HRV）和心肺同步性的影响，以此作为自主神经系统活动的替代指标。纳入了69名健康孕妇；33名孕妇组成瑜伽组，在整个孕期每周至少参加一次90分钟的瑜伽课程，36名孕妇作为对照组，未参与正式的孕期锻炼计划。在孕期的每个 trimester，于瑜伽或30分钟中等强度步行前后，分别测量时域（SDNN，正常R-R间期的标准差；RMSSD，连续R-R间期均方差的平方根）和频域（ln(LF/HF)，低频与高频功率的自然对数）HRV指标以及心肺同步性指标。使用三因素方差分析进行统计学比较（p < 0.05为有显著性差异）。与整个孕期的对照组相比，瑜伽组在时域和频域的HRV指标在瑜伽锻炼后均显示出显著向副交感神经优势的转变（SDNN的p = 0.002，RMSSD的p < 0.001，ln(LF/HF)的p = 0.006）。与对照组相比，瑜伽锻炼后呼吸频率与心率之间同步性更高的趋势在统计学上无显著性差异（p = 0.057）。规律的产前瑜伽与整个孕期持续增强的副交感神经激活相关。
