Julie Bowen, famed for Modern Family, faced a health scare at 29. She was diagnosed with sick sinus syndrome. Her sister ...

The short answer, from Coros, is that optical heart rate monitoring works by using light shone through your skin to see your blood flow. While watches can do a reasonable job on the wrist, there is a ...

Participation in sports activity and regular physical training is associated with physiological structural and electrical changes in the heart (athlete’s heart) that enable sustained increases in ...

A miniature wireless node for ECG measurements is presented. The ECG node is designed to be used in various applications including measurement of heart rate during physical exercise and continuous ...

While the sensor nodes are noticeable when you first put on the ring, they’re less obtrusive after a minute or so of wearing it. Eventually, it hardly feels like you’re wearing a ring at all.

To diagnose a heart block, a doctor may order an ECG. Mobitz type I causes a progressive prolongation of the PR interval, which eventually builds to a non-conducting P wave.

Atrial flutter originates from a single focus within the atria but not within the sinoatrial (SA) node. This is important to note because atrial foci do not have rate limitations that are ...

The correct diagnosis is sinus rhythm with sinus pause due to sinus node exit block (Figure 2). Figure 2. Courtesy of Philip J. Podrid, MD. The rhythm is regular at a rate of 75 beats/min. A P ...

Trigeminy is a three-beat tightening or contraction that starts in the sinus node, then the sinus node or ventricle, and finally the ventricle. The extra contractions happen sooner than your next ...

The heart's normal rhythm is referred to as " sinus rhythm" because the electrical signals, called impulses, are generated by the sinus node. These impulses are what appear as up-and-down patterns of ...

Electrocardiogram (ECG) results for NRSA can be similar to those for respiratory sinus arrhythmia. However, the difference is that NRSA does not affect a person’s breathing.