Thursday, October 9, 2008

Major Lab Unit 2








The purspose of this lab was to see the effect that different activities have on our body's respiratory system. There were four elements measured : pulse rate, respiratory rate, systolic blood pressure, and diastolic blood pressure. After taking all of those measurements five different times after taking a 20 minute rest (difficult to acheive with a 2 year old pouring a plastic cup of Smarties down my shirt), I chose three activities to test their affect on my body. I choose a subdued activity, reading to and snuggling with my daughter; a high energy activity, dancing to The Wiggles with my daughter; and a regular activity, eating dinner. Each of these activities was repeated and measured three times and the average measurement calculated.




I couldn't get the table to copy, so here is my hypothesis as to what will happen to my rates after each of the activities in comparison to my resting rate.




Reading to my daughter : I predict that all four measurements will be lower




Dancing with my daughter : I predict that all four measurements will be higher




Eating dinner : I predict that all four measurements will be very similar to my resting rates.
taking my resting pulse rate (I wasn't lying about my daughter pouring a cup of smarties down my shirt)






taking my resting respiration rate







taking my resting blood pressure




snuggling and reading with my daughter







dancing to The Wiggles with my daughter

eating dinner


The results are as follows in the bar graphs:


My hypothesis proved to be correct for the most part. My pulse rate decreased significantly while reading, was suprisingly similar to my resting rate while dancing, and was lower while eating. My respiratory rate decreased significantly whild reading, increased significantly while dancing, and was very similar to my resting rate while eating. My systolic blood pressure decreased while reading, increased quite a bit while dancing, and slightly increased while eating. My diastolic blood pressure decreased while reading, increased while dancing, and decreased while eating.
I think my eating hypothesis was thrown off a bit because I wasn't that relaxed at dinner...I was tired from work, my husband was doing homework, and I was running late trying to get dinner ready by myself. Other than that, there were no problems - I wore myself out dancing to The Wiggles, but my daughter thoroughly enjoyed helping Mommy with homework.
In conclusion, everything we do effects our circulatory and respiratory systems, even if in just the smallest way. I think that the rate of our breathing is most susceptible to the differences.



1 comment:

Larry Frolich said...

Hi Erin,
Great job on this unit. Your lab project is so well done. As are the compendiums and online labs and essay. I didn't see the self/unit eval...you can still do this if you want and I'll award points—just e-mail me when it's done. Keep up the great work!
LF


LAB PROJECT: Great job on this project...I greatly appreciate the involvement of the whole family and the details, how dinner might have been affected by factors outside the experimental control. Your data are good...showing systolic going up with activity but diastolic not..which is what would be expected. I'm amazed at how much rates went down while reading...usually relaxing activities don't show that much difference, but lying down I think makes a big difference, assuming you also took the measurements lying down, which I think is shown in the pictures.


ETHICS ESSAY: Great essay trying to balance the realities of peoples lives and what we “should” be doing...I appreciate again the personal details on the trip to the mall—always interesting to see what factors enter in...every family is an entire world of its own! (your daughter, by the way, is very cute!)


COMPENDIUMS: These are very well done...nice table of contents showing me what is there...great text in your own words with complete and acurate descriptions. You might tell us where each image or the source of your information...ooops, it's at the end, now I see. Then my only other suggestion is to be sure to be complete...I didn't see anything on glucose regulation and nutrition for the first topic and I think that was covered.

ONLINE LABS: These look great...nice job on the food for a day. By the way, that screen shot opens up to a full page and is quite clear...no need to also type the information in...you do a great job of analyzing your own diet. On the blood pressure lab, I didn't see an image of the graphs...again, it's fine to just take a digital photo of the screen and post that in.