Year 10 Biology IA
Research Question
How does consistent running up and down on the stairs at differing intensities affect the heart rate in Year 10 students?
Introduction
The main role of the circulatory system is the delivery of oxygen and nutrients and the removal of carbon dioxide and wastes. The circulatory system consists of the heart and the network of arteries, veins and capillaries. Carbon dioxide present in the body is carried by blood to the lungs for exhalation and oxygen is then picked up. Blood also collects food nutrients from the small intestine, which is then distributed to every cell. The heart is made up of four chambers, and acts as a double pump, with the blood flow moving in a single direction due to the presence of …show more content…
The average heart rate when the participant undertook the exercise at intensity 2 was 115 bpm, which is significantly higher than the heart rate at intensity 1, by 38.333333 bpm. The average heart rate at intensity 3 was 134 bpm, which is again, higher than the heart rate of the previous intensity, intensity 2, by 19 bpm. At intensity 4, the average heart rate of the participant was approximately 165.6666667 bpm; once more, the heart rate is higher than the heart rate of the previous intensities, by 31.6666667 bpm. The final intensity, intensity 5, showed the highest recording average heart rate of 178 bpm, which was higher than the heart rate of that recorded at intensity 4 by 12.3333333 …show more content…
The average heart rate from intensity 1 differed greatly from that of intensity 2, as the body was put under an exercise which required sudden physical activity, from no activity. This is because when the body was put under exercise, it demanded more oxygen as the muscles use oxygen to generate energy needed, and therefore the increased demand of oxygen resulted in increase in heart rate. This was the same with the other intensities; the higher intensity had a higher heart rate than that of the previous lower intensities as the activity at a higher intensity required more activity than that of the lower intensity.
As can be seen from the graph 1.3, the standard deviation of data showed noteworthy extent of unpredictability as the deviation for all intensities were inconsistent with the trend line. The trend line of the graph showed a growth as the intensity of the exercise increased. The showed that as the intensity of the exercise increased, the unpredictability of the data also increased. When the standard deviations of the intensities 2,3, and 4 were compared with the deviation of intensity 1 (no activity), it showed that as the body was put under physical activity, the heart rate of the participant varied
Research Question
How does consistent running up and down on the stairs at differing intensities affect the heart rate in Year 10 students?
Introduction
The main role of the circulatory system is the delivery of oxygen and nutrients and the removal of carbon dioxide and wastes. The circulatory system consists of the heart and the network of arteries, veins and capillaries. Carbon dioxide present in the body is carried by blood to the lungs for exhalation and oxygen is then picked up. Blood also collects food nutrients from the small intestine, which is then distributed to every cell. The heart is made up of four chambers, and acts as a double pump, with the blood flow moving in a single direction due to the presence of …show more content…
The average heart rate when the participant undertook the exercise at intensity 2 was 115 bpm, which is significantly higher than the heart rate at intensity 1, by 38.333333 bpm. The average heart rate at intensity 3 was 134 bpm, which is again, higher than the heart rate of the previous intensity, intensity 2, by 19 bpm. At intensity 4, the average heart rate of the participant was approximately 165.6666667 bpm; once more, the heart rate is higher than the heart rate of the previous intensities, by 31.6666667 bpm. The final intensity, intensity 5, showed the highest recording average heart rate of 178 bpm, which was higher than the heart rate of that recorded at intensity 4 by 12.3333333 …show more content…
The average heart rate from intensity 1 differed greatly from that of intensity 2, as the body was put under an exercise which required sudden physical activity, from no activity. This is because when the body was put under exercise, it demanded more oxygen as the muscles use oxygen to generate energy needed, and therefore the increased demand of oxygen resulted in increase in heart rate. This was the same with the other intensities; the higher intensity had a higher heart rate than that of the previous lower intensities as the activity at a higher intensity required more activity than that of the lower intensity.
As can be seen from the graph 1.3, the standard deviation of data showed noteworthy extent of unpredictability as the deviation for all intensities were inconsistent with the trend line. The trend line of the graph showed a growth as the intensity of the exercise increased. The showed that as the intensity of the exercise increased, the unpredictability of the data also increased. When the standard deviations of the intensities 2,3, and 4 were compared with the deviation of intensity 1 (no activity), it showed that as the body was put under physical activity, the heart rate of the participant varied