Heart Rate Lab Essay
Aspect 1: Defining the problem and selecting variables
In this lab, we will be studying the difference of heart rate between boys and girls. There are many things that can increase heart rate, such as exercise, drinking coffee, taking certain pills, drinking an energy drink, feeling a strong emotion, etc. I have chosen to use exercise as a means of increasing the heart rate of my subjects, more precisely, 20 sit-ups. There are many reasons why your heart rate increases when you exercise, the most important one being that your muscles require more oxygen and nutrients. For this requirement to be met the heart needs to pump more blood to the muscles, hence the heart rate increases.
Problem: Determining the difference, if …show more content…
Aspect 2: Evaluating procedures
Evaluation: There are various factors that could have affected the results of this experiment. For example:
* What the subject might have consumed before the experiment; if the subject had previously drank coffee or an energy drink or some kind of pill, their heart rate might have already been higher than usual to start with.
* Many of…