What is normal heart rate variability (HRV) range? See how HRV changes by age and gender and calculate your normative HRV scores.
The approximate entropy ( p <0.001) was the best indicator among 10 HRV indexes. However, the approximate entropy was also contaminated by motion artefact and did not reflect the gender-related autonomic change. The study verified the hypothesis that the HRV measures could be contaminated under ...
Measures reflecting cardiac sympathovagal activity, particularly those associated with heart rate variability (HRV), are widely recognized and utilized in both scientific and clinical contexts. This study aimed to assess the inter- and intra-examiner reliability of short-term HRV parameters in patients...
Lymphocytic T‐cell‐mediated immunity has been linked to a variety of heart conditions such as myocarditis and post‐myocardial infarction (Dressler's) syndrome22,23,24. Resting heart rate is defined as the number of beats per minute when the individual is at complete rest. It indicates the b...
There are few road accident studies that use heart rate as an indicator of driver fatigue. This study offers a mathematical regression analysis to discover which independent variables (driving speed, driving duration, body mass index, gender, and types of roads) are sign...
The aetiology of heart failure with preserved ejection fraction (HFpEF) is heterogenous and overlaps with that of several comorbidities like atrial fibrill
In general, large individual variation was found with regard to the HR and HRV, while gender did not influence the cardiac activity of the dogs. These results show that body position affected HR significantly in dogs. Further it seems that HRV could be a good indicator of the dog's ...
Heart rate (HR) is a term used to describe the frequency of the cardiac cycle, which consists of phases of myocardial contraction and relaxation. HR not only reflects the status of the cardiovascular system, but also serves as an indicator of autonomic nervous (sympathetic and parasympathetic/vag...
The repeated measurements of heart rate variability (HRV) is more relevant than a single HRV measurement in predicting patient prognosis but is less addressed previously. This prospective study aimed to investigate the association between repeated measurements of HRV and long-term mortality in chronic ...
Emerging technology allows patients to measure and record their heart rate (HR) remotely by photoplethysmography (PPG) using smart devices like smartphones. However, the validity and expected distribution of such measurements are unclear, making it diffi