Treadmill Lab Report

The aim of the experiment was to explore the relationship between the heart rate and rate of breathing with increased speed of the treadmill. It was hypothesised that the intensity of exercise (speed of treadmill) increases, then the heart rate and breathing rate will increase when the treadmill incline, time interval between sets, amount of time per set (rest time) and when the same person and equipment used are kept constant. The recorded results from the experiment supported the hypothesis as the runner’s heart rate and breathing rate increased as the speed of treadmill was increased.

The results tables support the hypothesis by how the heart and breathing rate increased each time the speed of the treadmill increased by 2km/h. For example in trial 1, the resting heart rate was at 70 beats per minute, and the breathing rate at 30 breaths per minute. As the speed of the treadmill increased, so did the heart and breathing rate. The heart rate increased from 110 beats per minute and 36 breaths per minute at speed 1 (2km/h), to 160

As presented in both figures, the line depicting the mean is quite steadily rising as the speed increases. For example, figure 1 exemplifies the impact exercise has on the heart rate. As seen in the graph, the average heart rate starts at a resting 83.3 beats per minute and rises steadily to the peak heart rate of 160 beats per minute at the fastest speed (8km/h). This coincides with the results shown in figure 2, the impact of exercise on thee breathing rate. The graph describes the steady rise of the breathing rate from a resting 34 breaths per minute, to an increase over 40, 48, to 52 and finally, a peak of 54 breaths per minute. Both these results are shown by a constant incline of the average line illustrated in the