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# Biomedical Sciences Experimental Design

All the steps for the lab project.
by

## Christina McKeown

on 6 December 2012

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#### Transcript of Biomedical Sciences Experimental Design

Biomedical Sciences
Experimental Design
By: Tim Saenz,
Araceli Tecpile,
Jonathan Compozano &
Christina McKeown Identify the Problem or Question Introduction Research and Current Ideas * What effect does an increase in physical activity have on heart rate? * This experiment is on heart rate. Plus the effect that physical activity have on our heart rate. In total we did nine steps to figure this out. The purpose of this experiment is to find the effect on our heart rate when we are involved in physical activity. The importance of our experiment is to see the increased effect on our heart rate when we are involved in physical activity. * Your heart rate is never constant. When you exercise, your heart rate goes up. When your nervous or scared, your heart rate goes up. When you rest, your heart rate goes down. Our experiment is to find the effect on our heart rate when we are physical involved in activity. Predict a solution to the problem or an answer to the question * When ever you have to move muscles, your heart rate will go up. So when you are involved with physical activity, your heart rate will have picked up.
* The independent variable is the heart rate, and the dependent variable is the exercise you do. Design the experiment to be used to test your hypothesis * 1st person 2nd person
1) Test resting heart rate 1) Test resting heart rate
2) Do 20 push-ups 2) Do 20 jumping jacks
3)Re-measure resting heart rate 3) Re-measure resting heart rate

Safety concerns:
* 1) Make sure not to overwork yourself
2) Don't put too much pressure on your wrist
3) Don't push your face too close to the ground
4) Don't slip and fall

Materials used:
* 1) two people
2) Heart rate monitor
3) LabQuest

* Somebody who is not doing the exercise is a control to be used for comparison. * The temperature need to be consistent.

* The data will be collected and recorded with the Vernier LabQuest Mini connected to the Hand-grip Heart Rate monitor. The two people will wrap their hands around the Hand-grip Heart Rate monitor, using Logger Pro to measure the heart rates.

* A line graph will be used to summarize the data. Carry out the experiment Jonathan's results: Araceli's results: Observations:
* Araceli's heart rate is higher than Jonathan's.
* Both of their second resting heart rate were higher than their first.
* Both of their highest heart rate was when they were working out. State the Conclusion Jonathan's and Araceli's heart rate both went up when they were physically exercising. Summary Paragraph In this experiment we tested if your heart rate would go up if you are physically active. To prove this we had Jonathan do twenty push-ups and Araceli twenty jumping jacks. Our hypothesis was supported. Their heart rates did increase.
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