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The Karvonen method factors in resting heart rate (HR rest) to calculate target heart rate (THR), using a range of 50–85% intensity: [9] THR = ((HR max − HR rest ) × %Intensity) + HR rest Example for someone with a HR max of 180 and a HR rest of 70:
The American Heart Association states the normal resting adult human heart rate is 60–100 bpm. An ultra-trained athlete would have a resting heart rate of 37–38 bpm. [3] Tachycardia is a high heart rate, defined as above 100 bpm at rest. [4] Bradycardia is a low heart rate, defined as below 60 bpm at rest.
Cardiac index is a critical parameter in evaluating cardiac performance and the adequacy of tissue perfusion. In healthy adults, the normal range of cardiac index is generally between 2.6 to 4.2 L/min/m². Values below this range may indicate hypoperfusion and are often seen in conditions such as heart failure, hypovolemia, and cardiogenic ...
This table shows target heart rate zones for different ages, says Dr. Steinbaum. “Your maximum heart rate is about 220 [bpm] minus your age.” ... People who do more exercise and aerobic ...
Then, take 60 and 70 percent of that number to determine your Zone 2 heart-rate range. How to calculate your Zone 2 cardio range: Lower threshold : 0.6 x (208 - age x 0.7)
Heart rate variability (HRV) is the physiological phenomenon of variation in the time interval between heartbeats. It is measured by the variation in the beat-to-beat interval. Other terms used include "cycle length variability", "R–R variability" (where R is a point corresponding to the peak of the QRS complex of the ECG wave; and R–R is ...