Flexor+and+Extensor

Flexor and Extensor Muscles

 * Topic:** Flexor and Extensor Muscles


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


 * Hypothesis:** I think the Extensor muscles are stronger, because we lift a lot in one day - things such as our book bags, books, and other things.


 * 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:**

In my hypothesis, I stated that I thought the Extensor muscles are stronger, because we lift a lot in one day - things such as our book bags, books, and other things. My hypothesis was stated correctly, and I was right. Each person in our groups used their flexor muscles in the curling motion, and then we used our extensor muscles in a bending motion. The numbers in the data next to the boy + girl indicate how many times each person could do the motion using their certain muscles. The total for both girls and boys was 1003 for the flexor, and 1257 for the extensor. The average for both boys and girls was 40.12 for the flexor, and 64.6 for the extensor. The average male used their flexor muscle 55.6 times, and their extensor 64.6. The average female used their flexor muscle 27.9 times. and their extensor 39 times. right or wrong.. explain the numbers and what they say. ex: the average male + female..**
 * in my hypothesis..