How Does Exercise Affect The Breathing Rate Experiment

The aim of this experiment was to determine if the heart and breathing rate will increase during exercise. It was hypothesised that if the amount of exercise (independent variable) increases, then the individual’s heart rate (bpm) and breathing rate (breaths-pm) (dependant variables) will increase when the environment in which the exercise is completed and a consistent and appropriate method of measurement for the dependant variables are kept constant. It was hypothesised that if physical exercise was increased, an individual’s heart and breathing rate would increase as a result. In this experiment, the exercise star jumps was chosen to complete this investigation. The intensities vaguely varied, each individaul going at a casual, but not to slow, pace. However this was not
After the 25 star jumps were conducted, each individuals breathing rate increased to an average of 29 and after 50 star jumps, 32. The average heart rate before the star jumps were performed, was 90 beats per minute, after 25 star jumps were conducted, each individuals heart rate increased to an average of 103.6 and after 50 star jumps, 124 beats/min. These results help further support the prediction that both heart and breathing rate increase when exercise is performed and increased. From the breathing rate graph, the rates were clearly shown to increase in each individual, as each line went diagonal and increased to an average of 29 (after 25 star jumps), compared to 20 before any exercises was performed. After 50 star jumps, the graph results are only shown to increase slightly, contrasted to the 25 star jump. The graph’s trend lines are fairly similar, they seem to have the same ‘shape’/line structure (stretched/slanted r). Jemima’s results on the graph looked different compared to everyone else’s, it was shown that her breathing rate didn’t increase as much which resulted in her data to look