Homeostasis Lab

We decided to study how heart rate is changed through exercise to maintain homeostasis in the body. To test this, our group chose two participants to do a 40 meter dash at different speeds and then record their heart rates immediately afterwards. First we recorded the resting heart rates of both participants, then we had them walk, jog, and sprint 40 meters, recording their heart rate right after each. After recording this data we put it into a google sheets and then create a poster, and a lab report. From our graphs and data we can tell that with the inclination if the intensity of the exercise, the heart rate of the person increases in hand. The body increases its heart rate because the muscles are being used at a higher intensity so they require more oxygen. With an increased heart rate the blood pumps faster throughout the body carrying oxygen at a faster rate to these muscles in use.

Content

• Homeostasis: the tendency toward a relatively stable equilibrium between interdependent elements. For our homeostasis lab we studied how the body increases its heart rate during exercise to maintain homeostasis.
• Heart Rate: also known as pulse, is the number of times a person's heart beats per minute. The body's heart rate is what our group studied for our homeostasis lab. To find our heart rates we held two fingers to our neck and found where our pulse was. Then we counted our pulse for fifteen seconds and multiplied that number by four to find our heart rate.
• Independent variable: the variable that is changed or controlled in a scientific experiment to test the effects on the dependent variable. Our independent variable in our lab was the intensity of the exercise for the 40 meters.
• Dependent variable: the variable being tested and measured in a scientific experiment. Our dependent variable for our lab was the heart rate.
• Control: an element that is not changed throughout an experiment. Our control for our lab was our resting heart rate.

Reflection

During this homeostasis lab our group could have improved on two negatives. The first one was how our group did not have much cultural competence throughout this lab. This lab didn't really require the groups to use cultural competence so our group should work together to make sure we incorporate it in our next project. The other pit of our time working on the lab was that our group could have collaborated better together. Although we got the lab finished on time, not everyone put in as much effort as the rest of the group to make sure the project was done well. If everyone contributed equally to the project then our group could have finished with time to spare.

Our group, however having a few things to work on, worked very well together. First of all, our group communicated very well. Everyone expressed their thoughts and ideas well on how to better our project. Second of all, our group worked very well as conscientious learners. As a group we set goals and managed our time to make sure that we finished both the lab report and the poster on time. In total our group worked well together through our communication and conscientious learning skills.