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Relationship between exercise intensity and heart rate
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Throughout this investigation, I will be conducting a number of experiments to help solve whether or not heart rate is affected by exercise. My aim is to identify the difference of every volunteer’s heart rate and take down how old they are so I can evaluate whether or not the age of a person make a difference in their bpm (beats per minute).
Many people know when you exercise for long periods of time; your breathing becomes more shallow and quick. The main human organ system used when exercising is the respiratory system. There are two types of respiration your body can carry out, aerobic, with oxygen, and anaerobic, without. The reason for getting tired from exercise is because when the body runs out of the oxygen it needs, anaerobic respiration takes its place. This respiration has no oxygen which means the body releases less energy and produces lactic acid. Lactic acid is a poisonous waste product that stops muscles contracting and relaxing. In this investigation, I will be finding out whether exercise that has two different types of respiration has a strong affect on the heart and its’ cardiac cycle.
I believe that throughout this investigation, the heart rate of the people of the people I will be experimenting on will speed up and rise to a very fast pace. I also think that although the heart rate is bound to increase, the pulse will eventually reach its maximum acceleration and stay steady after a long period of exercising. I do not believe that will be the result in my experiment for a main reason that the longest period of time people will be exercising in is 2.5 minutes, which is not long enough to get the heart rate at its maximum speed of acceleration.
In this investigation, I will be attempting to make this e...
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.... The tests were all similar to one another and the results were moving as predicted. After repeating it with three different people per age group, most of the results had no big differences. The range bars were not very far apart and were closer together because of how similar the results were even before calculating the averages. This shows me my results are quite reliable because most of the data collected was alike, so they were not misinterpreted or mistakes.
I think the results do fit with my conclusion and my theory. Most of the results are in the line of best fit and there is only a few odd results all together, if more results were taken, it would have helped justify my theory that the heart rate will eventually stop increasing, even when you carry on exercising. I think if we used longer time periods for exercise, we could have seen a bigger effect.
As predicted, the time it took for the bromothymol blue to turn to yellow decreased after more amounts of exercise. The subjects heart rates increased the more they ran up and down stairs as the body needed to use the bloodstream to bring more oxygen to the muscles. To let your bloodstream provide more oxygen, the heart begins beating hard and fast (“New Health Advisor”, 2016) to move blood quicker. This concludes the hypothesis that the time will decrease due to more CO2 being released.
Secondly, a touch football player’s heart rate would adapt in response to training. The athlete’s heart rate would decrease, both at rest and during exercise, as a direct result of the increased stroke volume and improved efficiency of the cardiorespiratory system.
The heart rate will be lowest when the subject is relaxed because the heart will have enough blood to pump in less beats per minute. When the subject sits up, it will increase its heart rate. However, the heart rate will be at its highest after the subject had exercised due to the body trying to satisfy itself by sending more oxygenated blood to where it is needed most.
The purpose of this experiment is to find out and record the response of the blood pressure on the cardio exercise when working under high and low intensity.
The two major things that will help an athlete while measuring the cardiovascular drift are progression and hydration levels. The heart rate of an athlete working hard during a workout should be no more than their maximum heart rate which is found by, if you’re a female take 226-age, if you’re a male take 220-age. If while doing a workout the maximum heart rate is exceeded by too much it may be necessary to take a break or slow down greatly. This may also help with traking the hydration of an athlete. If an athlete stays hydrated their core temperature will stay regulated which means they won’t sweat as much, which also means the heart won’t be under as much stress while transporting the oxygenated blood throughout the body to the
But there were many unsure points and errors which could have thrown the results off. The average resting rate (BPM) from Group A was 85.4 and Group B’s was 73.6. The stair climbing rate was 126.8(A) and 111.6(B) However, some contestants had unusual results, such as Britney from Group A ,whose BPM seemed unusually higher than others (114,146) and Sydney, (A) started with a very low bpm (62) which was the lowest out of all group members. Two other outliers from Group B (Kate and Ryan) started with higher resting rates by at least 10 beats more than other members from B which made the results look less and less reassuring. These standout data points made us question how accurate our hypothesis had been. This data may have had it’s rising trends for other reasons as well. From background information we later learned after conducting the experiment ,that caffeine won’t take immediate effect until 15
As noted in question two on page four, the air temperature made a relatively significant impact on the subject’s readings when comparing attempt one and two. The 1.5°C temperature increase during attempt two increased the subject’s initial skin temperature by 2.3°C and their core temperature by 1.5°C. This had a flow on effect, causing the subject to have an elevated heart rate during the first four minutes of exercise. This increase in bpm was most likely due to increased stress placed on the subject’s cardiovascular system to replace electrolytes lost to sweat via the bloodstream.
Blood flow to the muscles has been shown to increase with exercise (Lombardo, Rose, Taeschler, Tuluy, Bing, 1953). In this experiment, “blood flow” can be roughly measured as “Mean Arterial Pressure”. Mean Arterial Pressure is defined as the average blood pressure in the arteries throughout the entire cardiac cycle. This can be measured by multiplying “Cardiac Output” by “Total Peripheral Resistance”. Cardiac Output in essence is the volume of blood pumped by the heart in one minute, which can be written as the “Stroke volume (milliliters of blood per beat)” multiplied by “Heart rate (heart beats per minute). “Total Peripheral Resistance” can be defined
Prediction: I think that during exercise the breathing rate will significantly increase from the resting breathing rate, then once exercise has stopped the breathing rate will gradually decrease over a few minutes till it returns back to the resting breathing rate.
The hypothesis stated that as the intensity increases, then the heart rate will also increase. This is supported by the data collected. The graph shows that intensity and heart rate have a positive correlation which means that they will both increase at the same time in a linear fashion, validating the hypothesis. The r2 value of 0.9791 is also very close to 1 and the data points are near the trendline, meaning that the variables have a strong positive relationship. However, the error bars and standard deviation also demonstrates something that the hypothesis did not predict. The fact that the standard deviations of the lowest and highest intensity were lower compared to the other intensities in between suggest that there was less of a room for the heart rate to vary by increasing and decreasing. The lowest intensity did not result in a significant increase in heart rate, and as the heart rate after exercise cannot be lower than the resting heart rate, the spread of the data collected at the intensity of 100 metronome bpm is less. The standard deviation increases as the intensity increases due to the gap in exercise heart rate and resting heart rate. However, after the highest standard deviation (12.86) was reached at the intensity of 140 metronome bpm, the spread started to decrease. Eventually, at the
2008). In other words, there is an interaction between caffeine intake and muscle mass that determines pulse rate and in this experiment, muscle mass was a variable that was not accounted for. Furthermore, the resting pulse rate response to caffeine consumption prior to exercise is considered one of the most variable parameters of those in the study. Because this experiment measured resting pulse rate less than one hour before exercise, it is not completely reliable as a study by Bailey (1989) similarly suggested the implications of pulse rate variability to be a factor of the fluctuating results across subjects despite
body has to work harder I think that the heart will then increase at a
The figures in the table below show that soon as running speed increases our heart rate increases as well. For example, from the figures
Statistically females have approximately a 12% higher heart rate than males (Livestrong.com), taking into consideration of this natural differential between the sexes the averages have been calculated by the differences of initial heart rate and final heart rate. By doing so the results are able to correlate accurately against one another, demonstrating the increase/decrease of the participant’s heart rate. However, the results gathered exhibit inconsistency due to the averaging of the beats per minute between the males and females. This is as the anomalous figures of the sample skewed the results, altering the figures to be less/more significant than necessary. Evident in participant 693 whose heart rate decreased of 3 beats in the film excerpt
For muscles to be able to obtain the benefits of exercise, the heart and breathing rates must increase (Meg Brannagan, 2017). As the muscles are in use, the blood flow pushes blood back up to the heart faster than when at rest, thus increasing the heart rate to match it (Meg Brannagan, 2017). During high-intensity activities, muscles require more oxygen to keep moving because oxygen is needed to perform cellular respiration, which makes energy