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  2. Heart rate variability - Wikipedia

    en.wikipedia.org/wiki/Heart_rate_variability

    Heart rate variability visualized with R-R interval changes Electrocardiogram (ECG) recording of a canine heart that illustrates beat-to-beat variability in R–R interval (top) and heart rate (bottom). Heart rate variability (HRV) is the physiological phenomenon of variation in the time interval between heartbeats. It is measured by the ...

  3. Neurobiological effects of physical exercise - Wikipedia

    en.wikipedia.org/wiki/Neurobiological_effects_of...

    Neuroplasticity is the process by which neurons adapt to a disturbance over time, and most often occurs in response to repeated exposure to stimuli. [27] Aerobic exercise increases the production of neurotrophic factors [note 1] (e.g., BDNF, IGF-1, VEGF) which mediate improvements in cognitive functions and various forms of memory by promoting blood vessel formation in the brain, adult ...

  4. Best walking workout: Here's how to start walking for exercise

    www.aol.com/lifestyle/best-walking-workout-heres...

    Intensity: Moderate intensity exercise based on a heart rate at 60% of my maximum heart rate Time: 30 minutes of walking a day broken into 2, 15-minute walks, one before breakfast and the other ...

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

    www.aol.com/finance/resting-heart-rate-tell-lot...

    “The more exercise and regular cardiovascular exertion that you have, the lower your resting heart rate will be,” Ebinger tells Fortune. “That’s a reflection of a healthy cardiovascular ...

  6. Vagal tone - Wikipedia

    en.wikipedia.org/wiki/Vagal_tone

    The two branches of the autonomic nervous system work together to increase or slow the heart rate. The vagus nerve acts on the sinoatrial node, slowing its conduction and modulating vagal tone, via the neurotransmitter acetylcholine and downstream changes to ionic currents and calcium of heart cells. [ 4 ]

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

    www.aol.com/cardiologist-approved-ways-lower...

    Yoga, meditation, and breathing exercises also stimulate the parasympathetic nervous system and can lead to an overall lower heart rate, Dr. Steinbaum adds. Heart rate can also be lowered with the ...

  8. Cardiovascular fitness - Wikipedia

    en.wikipedia.org/wiki/Cardiovascular_fitness

    Cardiovascular fitness is a component of physical fitness, which refers to a person's ability to deliver oxygen to the working muscles, including the heart.Cardiovascular fitness is improved by sustained physical activity (see also Endurance Training) and is affected by many physiological parameters, including cardiac output (determined by heart rate multiplied by stroke volume), vascular ...

  9. 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.