As the parameters used in clinical testing, HRV must have good repeatability.
作为临床检测使用的参数，HRV必须具有较好的可重复性。
There was significant relation between HRV and BP loading, HRV and ECG abnormality.
HRV降低与血压负荷升高呈明显正相关，与心电异常也呈明显正相关。
This may give the appearance that it is working fine, but can lead to false HRV results.
这看起来运作良好，但对心率变异性而言则会导致错误的结果。
HRV infection is the most important risk factor for asthma exacerbation in these patients.
HRV感染是最主要的造成哮喘恶化的因素。
Objective To study characteristics of heart rate variability (HRV) in the normal newborns.
目的探讨正常新生儿心率变异性(HRV)的特点。
Objective To study difference of HRV between cardioneurosis and viral myocarditis on children.
目的探讨儿童病毒性心肌炎与心脏神经症心率变异性（HRV）变化的临床意义。
The effects of mental load on HRV of pilots were analyzed with nonlinear dynamic analyzing methods .
结果表明，加载精神负荷后受试者的HRV的三个非线性参数都有不同程度的降低。
It showed that there were changes in the dynamics of HRV and the modulations of cardiovascular system.
说明HRV的动力学特征有改变，心血管系统的调节功能有改变。
Study of nonlinear dynamics analysis means for HRV has wide clinical application and study foreground.
HRV的非线性动力学分析方法的应用有着广阔的临床应用和研究前景。
Conclusion Tongxinluo capsule can significantly improve HRV in patients with angina pectoris duo to CHD.
结论通心络胶囊可以显著提高冠心病心绞痛患者心率变异性。
Objective To use heart rate variations (HRV) in analysing and judging critically ill patient's prognosis.
目的了解危重症患者心率变异(HRV)，分析其对预后的指导价值。
Objective To study the effect of music relaxation therapy on heart rate variability (HRV) in hypertension.
目的探讨音乐松弛疗法对高血压病心率变异性的影响作用。
The relationship between the sleep stage and the ultra-low frequency components of HRV is also considered.
在特征提取中还考虑了HRV中超低频分量和睡眠的关系。
ConclusionsThe uniform respiration frequency affects not only high-frequency HRV, but also low-frequency HRV.
结论均匀呼吸的调息频率改变不仅影响HRV的高频段，而且还会影响HRV的低频段。
Objective To assess the mechanism of desflurane-mediated sympathetic activation by heart rate variability (HRV).
目的用心率变异性分析探讨地氟醚交感兴奋作用的发生机制。
Heart rate variability (HRV), an index for autonomic nervous system, may be useful to detect disease progression.
心率变异性(HRV)，作为自主神经系统的指标，可能对于监测疾病进展有作用。
HRV is the better index on assessing autonomic nerve change, which can be used to guide clinical treatment of XS.
心率变异分析可作为观察x综合征自主神经变化和指导临床治疗的指标。
Objective To study the changes of heart rate variability (HRV) in elderly patients with sleep apnea syndrome (OSAS).
目的探讨老年睡眠呼吸暂停综合征(OSAS)患者心率变异性特点及可能的发病机制。
Objective:To explore the correlation between the differentiation type of diabetes(DTD)and the heart rate variance(HRV).
目的：探讨糖尿病不同证型的心率变异（HRV）情况。
Conclusions: (1) the damage of HRV and left ventricular diastolic function appeared in the early phase of hypertension.
结论：(1)高血压患者HRV、左室舒张功能损害出现较早。
Methods Compared the heart rate variability (HRV) of 50 angina pectoris, 40 OMI, 60 AMI patients and 60 normal controls.
方法对60例健康者，50例心绞痛，40例陈旧性心肌梗死(omi)，60例急性心肌梗死(ami)患者的心率变异性进行了对比研究。
Heart rate variability (HRV) has been proposed as a noninvasive means to monitor the autonomic nervous activity of the heart.
心率变异性(HRV)分析是反映支配心脏自主神经活性的一项无创性指标。
The author herein reviews the physiological background, the measuring methods and the application in clinic and sports of HRV.
笔者从HRV的生理基础，测定方法，临床和体育运动中的应用几个方面综合评述了这一方法的研究现状。
The intention of this guide is to help you get started optimizing your health and performance with Heart Rate Variability (HRV).
这份指南的目的是帮助你开始应用心率变异性(HRV)来优化自己的健康和表现。
Objective: To observe the effect of Guava Leaf in treating the human rotavirus (HRV) enteritis in mice and explore its mechanism.
目的：研究番石榴叶对小鼠轮状病毒(HRV)肠炎的作用及其机制。
HRV increases and HR decreases with increasing passive fatigue level, which might show the physiological restrainable protection.
随着被动疲劳程度的增加，通常HRV升高，HR降低，这可能是生理抑制性保护作用。
Objective: To investigate the relationship of chronic congestive heart failure (CHF) and heart rate variability (HRV) in the elderly.
目的：探讨老年患者慢性充血性心衰(CHF)与心率变异性(HRV)的关系。
The differences in each frequency domain parameter of HRV among the groups and between the normal group and other groups were analyzed.
分析HRV各频谱参数在糖尿病各组间的差异及与正常人群间的差异。
The ratio of the low frequency to high frequency components in HRV power spectrum(LF/HF) fluctuates with the change in the sleep stages.
HRV频谱中低频和高频成分的比值（LF/HF）随着睡眠深度的变化而波动。
Objective To investigate the change of Chronotropic action and heart rate variability (HRV) in patients with essential hypertension (EH).
目的探讨原发性高血压(EH)患者变时性功能与心率变异性(HRV)的变化。
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