Curi Ana Christina Certain, Maior Alves Alex Souto, Silva Julio Guilherme
Rehabilitation Science at UNISUAM (Centro Universitário Augusto Motta), Rio de Janeiro, RJ, Brazil.
Rehabilitation Science at UNISUAM (Centro Universitário Augusto Motta), Brazil; Department of Physical Therapy - UFRJ [Universidade Federal do Rio de Janeiro], Brazil.
J Bodyw Mov Ther. 2018 Jul;22(3):666-672. doi: 10.1016/j.jbmt.2017.11.013. Epub 2017 Dec 9.
The aim of this study was to compare blood pressure (BP) behavior and heart rate variability (HRV) among hypertensive stage I and normotensive individuals who were submitted to the cranial technique of the 4th ventricle compression (CV4), an osteopathic technique.
In this experimental controlled study, thirty men between 40 and 60 years old were evaluated and divided into two groups: normotensive (NT) and hypertensive (HT). The CV4 maneuver was applied in both groups and BP was measured at 5 (five) different stages: pre and post-intervention, 5, 10 and 15min after technique. Time-frequency parameters were obtained from measurements of RR intervals. Data were analyzed using an ANOVA two-way for analysis of the condition factor (NT and HT) and times with p-value ≤ .05.
There was a reduction in the BP of the HT group. A significant intergroup difference (p = .01) was noticed, with respect to the standard deviation of successive normal R-R intervals (SDNN) values, mainly between pre-intervention and 15min stages. Concerning root mean square of the mean squared differences (RNSSD) values, the highlights were differences between pre-intervention and 10min (p = .01) only in the NT group. There was an increase in high frequencies (HF) values and a low frequencies (LF) attenuation in both groups at all different stages.
The data showed a BP reduction in the HT group in pre-intervention/15min and an increase in parasympathetic activity and decreased sympathetic activity in both groups. This suggests a change in the sympathetic-vagal balance. However, further studies are needed to elucidate the data on BP reduction mechanisms with CV4.
本研究旨在比较接受第四脑室压迫颅骨技术（CV4，一种整骨技术）的I期高血压患者和血压正常个体的血压（BP）行为及心率变异性（HRV）。
在这项实验对照研究中，对30名40至60岁的男性进行了评估，并将其分为两组：血压正常组（NT）和高血压组（HT）。两组均应用CV4手法，并在5个不同阶段测量血压：干预前、干预后、技术操作后5分钟、10分钟和15分钟。从RR间期测量中获取时频参数。使用双向方差分析对条件因素（NT和HT）及时间的数据进行分析，p值≤0.05。
HT组血压降低。在连续正常R-R间期标准差（SDNN）值方面，观察到显著的组间差异（p = 0.01），主要存在于干预前和15分钟阶段之间。关于平均平方差的均方根（RNSSD）值，仅在NT组中干预前和10分钟之间存在差异（p = 0.01）。在所有不同阶段，两组的高频（HF）值均增加，低频（LF）值衰减。
数据显示HT组在干预前/15分钟时血压降低，两组的副交感神经活动增加，交感神经活动减少。这表明交感-迷走神经平衡发生了变化。然而，需要进一步研究以阐明CV4降低血压机制的数据。
