While heart rate zones might sound a little confusing, it's easier if you imagine your heart like a dial with different ...

If you look at this in the context of heart rate zones, you could consider zone 1 training as moderate intensity, and zones 2 and 3 as vigorous. Then, you can use heart rate zones to make sure you ...

Zone 1 (55-65% of max heart rate): This is the "conversational pace" zone. You work at a light intensity, so you can easily chat without losing your breath. This pace is ideal for burning fat and is ...

The second heart sound (S2) is produced by the closure of the aortic and pulmonic valves. The sound produced by the closure of the aortic valve is termed A2, and the sound produced by the closure ...

The fourth heart sound (S4), also known as the “atrial gallop,” occurs just before S1 when the atria contract to force blood into the left ventricle. If the left ventricle is noncompliant ...