Flexor and Extensor Muscles

Topic: Flexor and Extensor Muscles

Question: Which muscles are stronger, flexor or extensor muscles?

Hypothesis: I hypothesis that the flexor muscle will be able to do more than the extensor muscle.

Procedure:

1. Get into groups
2. Have one person stand up straight with his / her back against a wall.
3. Have that person hold the weights in his / her dominant hand
4. In a "curling" motion, have the student raise and lower the weights until his / her arms get tired.
5. Repeat steps 2-4 for each member of the group.
6. Record the data for each member of the group.
7. Have the first person stand as straight as possible near a wall.
8. Have the student hold the weights with his / her dominant arm bent near the ear.
9. In a motion that mimics throwing, have the student extend the weights above his / her head until the dominant arm gets tired.
10. Repeat steps 7-9 for each member of the group.
11. Record the data for each member of the group.

Data: flexorextensor207.xls

Conclusion:
I hypothesized that the flexor muscles would be able to do more than the extensor muscles. My hypothesis was incorrect. The average of how many the flexor muscles could do was 40.1 and the average of how many the extensor muscles could do was 50.3. So, this proves my hypothesis incorrect.