Question

The duration of the cardiac cycle in an 89 year old women is 1.4 seconds.this means that her heartbeat rate is approximately ??

Answer 1

Answer:

See dividing the cardiac cycle time with per minute we will got the heart beat per minute, so it will be(60/1.4)=43 beats per minute approximately.

Explanation:

Answer 2

Duration of heartbeat rate

Explanation:

• The cardiac cycle is the time it takes for the heartbeat after one heartbeat.
• Heartbeat is time calculated  the rate of heartbeats in sixty seconds.
• Hence, divide the 60 seconds of the heartbeat with 1.4 second of cardiac cycle .It will be :
• 1 beat = 1.4 second
• 1 second = $\frac{1}{1.4}$ beats
• 60 seconds = 60 X $\frac{1}{1.4}$ beats
• Heartbeat rate = $\frac{60}{1.4}$ beats = 42.85 bpm
• So approximately heartbeat rate is 43 beats per minute(bpm)