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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. Your resting heart rate can tell you a lot about your health ...

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   Bradycardia, on the other hand, occurs when your heart rate falls below 60 bpm. Conditions including obstructive sleep apnea and chemical imbalances in the blood can cause bradycardia.

4. Here Are Cardiologist-Approved Ways to Lower Your Resting ...

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   “If you’re sitting or lying and you’re calm, relaxed and aren’t ill, your heart rate is normally between 60 and 100 beats per minute (bpm),” she notes. Keep in mind that depending on ...

5. Vital signs - Wikipedia

   en.wikipedia.org/wiki/Vital_signs

   A child aged 1–⁠3 years old can have a heart rate of 80–⁠130 bpm, a child aged 3–⁠5 years old a heart rate of 80–⁠120 bpm, an older child (age of 6–10) a heart rate of 70–⁠110 bpm, and an adolescent (age 11–⁠14) a heart rate of 60–105 bpm. [12] An adult (age 15+) can have a heart rate of 60–100 bpm. [12]

6. Bruce protocol - Wikipedia

   en.wikipedia.org/wiki/Bruce_protocol

   [citation needed] The heart rate formula most often used for the Bruce is the Karvonen formula (below). A more accurate formula, offered in a study published in the journal, Medicine & Science in Sports & Exercise, is 206.9 - (0.67 x age) which can also be used to more accurately determine VO2 Max, but may produce significantly different results.

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

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   How to find your maximum heart rate: 220 - your age = MHR. For example: if you’re 35 years old, your MHR is 185 BPM (220-35), and 60 to 70 percent of that is 111 to 130 BPM. Vigorous-Intensity ...

8. QT interval - Wikipedia

   en.wikipedia.org/wiki/QT_interval

   For example, taking normal QTc ≤ 0.42 s, QT would be expected to be 0.42 s or less at a heart rate of 60 bpm. For a heart rate of 70 bpm, QT would roughly be expected to be equal to or below 0.40 s. Likewise, for 80 bpm, QT would roughly be expected to be equal to or below 0.38 s. [13]

9. Normal Heart Rate for Elderly: What You Need to Know - AOL

   www.aol.com/normal-heart-rate-elderly-know...

   In all adults, including seniors, a normal resting heart rate can be anywhere between 60 and 100 beats per minute. But note: the lower the number within this range, the better.