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2. Heart rate - Wikipedia

   en.wikipedia.org/wiki/Heart_rate

   Heart rate is the frequency of the heartbeat measured by the number of contractions of the heart per minute (beats per minute, or bpm). The heart rate varies according to the body's physical needs, including the need to absorb oxygen and excrete carbon dioxide .

3. Cardiac output - Wikipedia

   en.wikipedia.org/wiki/Cardiac_output

   Major factors influencing cardiac output – heart rate and stroke volume, both of which are variable. [1]In cardiac physiology, cardiac output (CO), also known as heart output and often denoted by the symbols , ˙, or ˙, [2] is the volumetric flow rate of the heart's pumping output: that is, the volume of blood being pumped by a single ventricle of the heart, per unit time (usually measured ...

4. Cardiac pacemaker - Wikipedia

   en.wikipedia.org/wiki/Cardiac_pacemaker

   Further down the electrical conducting system of the heart is the Bundle of His. The left and right bundle branches, and the Purkinje fibers, will also produce a spontaneous action potential at a rate of 30-40 beats per minute, so if the SA and AV node both fail to function, these cells can become pacemakers. These cells will be initiating ...

5. What Is Zone 2 Training & How It Can Support Weight Loss? - AOL

   www.aol.com/zone-2-training-support-weight...

   Maximum Heart Rate. Your max heart rate is the highest number of beats per minute your heart can handle during intense exercise. A quick way to estimate this is by subtracting your age from 220 ...

6. Cardiac physiology - Wikipedia

   en.wikipedia.org/wiki/Cardiac_physiology

   The resting heart rate of a newborn can be 120 beats per minute (bpm) and this gradually decreases until maturity and then gradually increases again with age. The adult resting heart rate ranges from 60 to 100 bpm. Exercise and fitness levels, age and basal metabolic rate can all affect the heart rate. An athlete's heart rate can be lower than ...

7. Trainers Say This Is The Least Amount Of Cardio You Need To ...

   www.aol.com/trainers-least-amount-cardio-see...

   The minimum amount of cardio exercise you can get away with each week depends on your resting heart rate and your specific fitness goals, according to trainers. ... 150 minutes per week of ...