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How quickly does your heart rate recover after exercise?

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Introduction

Christina Taryoto Biology 10/5/03 How quickly does your heart rate recover after exercise? Results Resting Pulse Trial Hear beats per 30 seconds Heart beats per minute 1 45 90 2 44 88 3 46 92 Average resting pulse 90 beats per minute Mild Exercise Time (seconds) Heart beats per 30 seconds Heart beats per minute 0-30 59 118 60-90 52 104 120-150 45 90 Hard Exercise Time (seconds) Heart beats per 30 seconds Heart beats per minute 0-30 74 148 60-90 63 126 120-150 54 108 180-210 45 90 Conclusion: From doing the experiment I found out that the more intense the exercise, the higher the pulse rate increases and therefore the longer it takes for it to return normal. In other words, the greater the intensity of exercise the slower our heart rates recover or the less intensity of exercise the faster our heart rates recover. When the body is exercising the muscles respire to produce energy, so the muscles can contract. Oxygen is needed for this process; the oxygen is carried in the haemoglobin of the red blood cell. ...read more.

Middle

In time 4, I returned to my resting pulse and Nicole had 40 heartbeats more than me. In time 5, Nicole returned to her resting pulse, she has two more hear beats than me. The results of Hard Exercise between Nicole and I proves many things. How quickly your heart rate recovers after exercise, can depend on many factors such as diet, fitness level, weight, and height. I came to this conclusion because Nicole and I are quite different in those factors. Also I am sure than gender also affects pulse rate. Evaluation: I think my experiment went well. My results were accurate and they showed a definite pattern. Most of the results were on the line of best fit and other results were still very close to the line of best fit. After looking at the graph I believe that this method was accurate enough. I have decided this due to a number of factors. To ensure reliable results throughout the experiment we controlled all the variables listed below that could have affected our results. ...read more.

Conclusion

The heat of the body would raise the heart rate, which would adversely affect our results, making them less accurate and reliable. Although we cannot control the exercisers temperature during exercise, we can use a fan to cool the epidermis of the skin, which would lower the temperature of the blood, therefore reducing the body's temperature. This would keep the heart rate at a more natural level during exercise. * There is a possibility that I could have found the wrong average resting pulse. Miscounting and not being fully relaxed during the trials could cause this. If this were the case the experiment would have to be done again. All of the results depend on when they reach the resting pulse and if you don't have the correct resting pulse then the results would be inaccurate. To improve this experiment I would increase the amount of times it is repeated, to give a wider range for the average to be taken from. I suggest taking more time to get the resting pulse, it is important that you get a very accurate number because the experiment depends on when you reach your average resting pulse. ...read more.

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