CSB #8: The Effect of Different Exercise on Heart Rate

BY: ZABIN BASHAR, VIKRAM CHARI, and ERIC HOLT

How Standing, Walking, and Jogging Affects Heart Rate

Background Info: Our project tested heart beat rate after doing physical exercise. Heart beat rate was measured after standing in place for a minute, walking in place for a minute, and running in place for a minute. 

Why we chose this topic: We were curious to figure out how various daily activities affected our heart rate. In addition, after watching the video on heart attacks we were concerned about how each activity plays a role in our heart rate, and how we can take care of our hearts in the long-run. 

QUESTION: Does physical exercise increase a person's heart beat rate? Does the physical intensity of the exercise have a positive correlation with heart beat rate.

HYPOTHESIS: We think that physical exercise increases heart beat rate. The more intense the activity, the higher the heart beat rate will go.

METHODS: We first measured a person's heart rate for 1 minute using Vernier's Hand-Grip Heart Rate Monitor. During this one minute, we would either stand, walk, or run in place. Make sure to rest for a few minutes before doing another run of the experiment. After Logger Pro finished collecting data on our laptops, we examined it.

HOW TO HOLD THE HEART GRIP MONITOR

VARIABLES: The intensity of the exercise was the independent variable and the dependent variable was the heart rate.

DATA AND GRAPHS

Leo's heart rate while running

 

 Matthew's heart rate while walking

Zabin's heart rate while standing (Went from 84-94 beats per minute)

 Eric's heart rate while standing

 Vikram's heart rate while running

 Vikram's heart rate while standing

Vikram's heart rate while walking in place

 Zabin's heart rate while running

  Zabin's heart rate while walking

 Eric's heart rate while running 

  

Eric's heart rate while walking in place

Although the values on the tables are not readable, the points on the graphs show that their is an increase in heart rate when exercising. In addition, the faster we moved, the steeper the slope of the graph was. Therefore, we can conclude that the physical intensity had a positive effect on heart rate.  
    
PHYSIOLOGY ASPECT: Cells transport oxygen and energy using blood. The more intense an exercise becomes, the more oxygen and energy is necessary for your body. So, blood needs to be shipped out much faster. In order to ship blood faster, the heart must pump blood out faster. Therefore, heart rate goes up. Since running in place required the most energy, the heart rate went up the most.


FUTURE ADDITIONS: 
When planning this experiment, we also thought about testing the CO2 emissions during exercise. However, we did not have time and ended up doing only heart rate. So, if we repeat this experiment again, we will add that variable.


Thanks to Leo Yu and Matthew Huang for also contributing data sets.

How To Treat Acute Pancreatitis Using Aluminum Foil, Gelatin, Milk Protein, A Cheap LED Light, and A Few Other Cheap Items

BY ZABIN BASHAR

In the university of Texas, a smart grad has found out how to do a fast one-hour test of acute pancreatitis using aluminum foil, gelatin, milk protein, a cheap LED light, and a few other cheap materials. All of this can be done using less than a dollar. For those who do not know, acute pancreatitis is the sudden swelling or inflammation of the panacreas. This is a serious issue which can cause pain, fever, or even death. Since it is so serious, it needs to be identified as quickly as possible. That is why Brian Zaccheo, the graduate behind this amazing device, created it. This test is much faster than any known methods. This sensor is simple enough to understand. It uses a two-step protocoal to test for the disease. In step one, a bit of blood extract is dropped onto a layer of gelatin and milk protein. If there are high levels of trypsin, an enzyme that is overabundant in the blood of patients with acute pancreatitis, the trypsin will break down the mixture the way it breaks down protein in the stomach. In step two, a drop of sodium hydroxide is added. If the trypsin levels were high enough to break down that first barrier, the sodium hydroxide can trickle down to the second barrier, a strip of aluminum foil, and start dissolving it. The foil breaks down, and with both barriers now permeable, a circuit is able to form between a magnesium anode and an iron salt at the cathode. Enough current is generated to light up a red LED. If the LED lights up within an hour, acute pancreatitis is diagnosed. In addition,


This is a great invention because it is cheap and self-powered. It is also faster than any known method. This invention will be useful for people in developing worlds, who do not have the resources for more complicated tests. In addition, it could be used when batteries are in short supply. Finally, it could be used in hospitals as a measure to test for acute pancreatitis. This ingenious solution is brilliant, a model that all future scientists should try to follow: cheap, simple, and fast.








Citations: : Dilow, Clay. "In One Hour, For Less Than a Buck, a Sensor Made of Jell-O and Foil Detects Acute Pancreatitis." Popular Science. N.p., n.d. Web. 4 May
2011. <http://www.popsci.com/science/article/2011-04/less-buck-sensor-made-jell-o-and-foil-detects-acute-pancreatitis-one-hour>.