Yourheart rateis the number of heartbeats you have in a minute. Your heart rate depends on what you're doing at the time. So, if you're resting or relaxed, your heart beats slower, and if you're moving or stressed, your heart beats faster. Your body adapts to your energy needs and...
Maximal rate of heart rate (HR) increase (rHRI) as a measure of HR acceleration during the transition from rest to exercise, or during an increase in workload, tracks exercise performance. rHRI assessed at relative rather than absolute workloads may track performance better, and a field test...
Secondly, the study confirms that, similar to the QT interval duration, the JTp and JT50 intervals are dependent on the history of the underlying heart rate rather than on the instantaneous heart rate taken at the time of the interval measurement. This is not surprising since there is an obv...
Your heart rate frequency is not supposed to be on the high side if you haven’t moved at all for a few minutes. Likewise, your heart rate rhythm should remain below a certain BPM value while you appear to have been inactive for a period of 10 minutes. If repeated frequently, too low...
A congenital cardiovascular lesion is rarely signaled by a disturbance of the heart rate or the heart rhythm. Congenital cardiac disturbances are varied and may involve almost all components of the heart and great arteries. Some may cause death at the time of birth, others may not have an ...
sleep-tracking purposes. Some people need the most accurate heart rate data possible. However, not all heart rate sensors are created equally. There’s also no guarantee that the latest version of a device will have a more reliable heart rate sensor than older devices, at least in our ...
Remember that the two main determinants of auscultatory proficiency are the fit of the earpieces and the quality (or at least the education!) of the gray matter between them. Recognition of normal splitting of the secondheart soundoften is impossible when the heart rate is rapid. However, yo...
Heart Rate Variability: What You Need to Know Your heart doesn’t beat at exact intervals. Heart rate variability is the difference in timing between heartbeats (also known as RR intervals). For example, let’s say your heart beats at a rate of 60 times per minute. Although there are 60...
In the same animal model of heart failure as described above [36] QT prolongation was observed in vivo at a physiological heart rate [40] (Fig. 2A). Action potential prolongation was not observed in isolated ventricular myocytes obtained from the same hearts at a (physiological) stimulation ...
Compared with women, this group of patients with a BMI < 30, no history of atrial fibrillation, no history of COPD and no history of PCI had a higher all-cause mortality rate at 90 days in the male HFmrEF (P < 0.05). Table 5 Comparison of 90 day all cause deaths between...