Flexor+and+Extensor

Flexor and Extensor Muscles

 * Topic:** Flexor and Extensor Muscles


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


 * Hypothesis:** //I think that flexor muscles are stronger than extensor muscles because you do more lifting than pushing, especially with your arms. It's just physically harder to use extensor muscles than flexor muscles.//


 * 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.

Boy || __**Flexor Muscle**__ 54 || __**Extensor Muscle**__ 32 ||
 * Data**: [[file:flexorextensor205.xls]]
 * __**Group Member**__
 * Girl || 30 || 16 ||
 * Girl || 16 || 2 ||
 * Girl || 15 || 5 ||
 * Girl || 11 || 1 ||

My hypothesis was correct. It was correct because the flexor muscle was stronger than the extensor muscle, at least for me. The average flexor for female was 27.77, and the average flexor muscle for males was 20.31. The average extensor for female was 29.82, and the average for male was 25.18. I noticed that the girls who used the 8 pound weights got less when they were doing the "curling" and "throwing" than the other girls, who used the 5 pound weights. I was one of the ones with the 8 pound ones.
 * Conclusion:**