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In an event of fast running, heart starts beating faster leading to decrease in cardiac cycle timings. This occurs due to: 1. Proportional decrease in cardiac diastole and systole duration. 2. Less Duration of diastole and same duration of systole. 3. Same duration of diastole and less duration of systole. 4. Much more decrease in duration of diastole than that of systole.

In an event of fast running, heart starts beating faster leading to decrease in cardiac cycle timings. This occurs due to: 1. Proportional decrease in cardiac diastole and systole duration. 2. Less Duration of diastole and same duration of systole. 3. Same duration of diastole and less duration of systole. 4. Much more decrease in duration of diastole than that of systole.

Grade:12th pass

3 Answers

Aabid Hussain
askIITians Faculty 576 Points
7 years ago
Hi Manik,

I think that decrease in cardiac cycle timing is due to:
Much more decrese in duration of diastole than that of systole.

Hope the answer of the question .
jyoti bhatia
202 Points
7 years ago
Cardiac cycle time during normal heartbeat is 0.8 second, which includes both systole and diastole. In an event of fast running, heart starts beating faster leading to decrease in cardiac cycle timings. This occurs due to much more decrease in duration of diastole than that of systole.
raj
383 Points
7 years ago
helllo,I think that decrease in cardiac cycle timing is due to:Much more decrese in duration of diastole than that of systole.

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