How long do the periods of systole and diastole last?

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    • #18043

      The background to this is i’m doing some work using ECGs for an animation of the heart and i’m having trouble defining the end points of these periods, particularly diastole. So i was wondering what the normal lengths of these periods are and what could affect the lengths of these periods.

      I assume that the lengths of the periods is mainly affected by pressure/blood volume and not electrical activity so an ECG won’t tell you how long these periods are (unless a heart beat is interrupted by another?). Is that assumption correct?

      On a side note: what would happens to the heart physically if there is a large gap between beats. Does it sit relatively still during that period?

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