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clothespin
Effect of exercise on squeezing a clothespin

Natasha Hakim, Biology H, Mr.Onderdonk Introduction
Does exercise make your muscles tired? In my controlled experiment I investigated this problem. My hypothesis was “If I rest first then I can squeeze the clothespin more times” My reason behind this is because during exercise I think you tire yourself out more, so resting before squeezing could increase number of squeezes. Methods and Materials
The materials I used in this experiment were 8 people (subjects) and 8 clothespins of the same type. First I recognized my dependent variable, how many times you can squeeze clothespin, and my independent, exercise. I took a group of 8 classmates, excluding myself and instead including my younger brother. I decided to let the control group also serve as the experimental group. The steps I took were to let the control group rest before starting, and then they squeezed the clothespin for one minute and counted how many times they could squeeze it. After that they rested for another minute, then exercised by jogging in place for one minute and after they immediately squeezed the clothespin. Results
Subject
Experimental Group
Control Group
1. Megan
205
226
2. Dane
277
307
3. Nick B
209
235
4. My younger brother
152
136
5. Nick C
194
214
6. Vinny
195
234
7. Colin
8. Dan
Average
192
280
213
201
240
224

More subjects squeezed the pin more times resting first. The average of all the data shows this also. Looking at the graph it’s easier to see the results and compare them than the table. The table does not show a visual comparison but shows the data and numerical information. The
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