Dominant Arm Difference

In the first activity, we came to conclusion that one arm in fact was stronger than the other. Everyone’s dominant arm took more time to fatigue, which means it, stronger. I believe this was the case because the dominant arm is used more. More tension and pressures is put on this arm and it becomes stronger. However, according to the maximum clench force, the non-dominant arm is the stronger one. This proves the hypothesis wrong. The procedure might have been done wrong and that is why this is he result we had. The arm that is used the most should be the strongest one. This is also proven with the circumference of each arm. For all three members of the group, the dominant arm had a bigger circumference than the non-dominant arm. Although not
a big difference, the size shows that the dominant hand is bigger (stronger). With the data we calculated, there was no relationship seen between the circumference of the forearm and the maximum force developed. Due to this, I believe it proves our hypothesis that the non-dominant arm fatigues quicker. In the second activity, it was hypothesized that the Bicep brachii would dominate when winning during arm wrestling. After taking the average of the whole class’ data, it was determined that our hypothesis was proven. The Bicep brachii did in fact have more activity while winning than Pronator teres did. The same results appeard when losing; the Bicep brachii had more activity than that of the Pronator teres. Therefore this group of muscles is more active when winning and losing. Both of our hypotheses were proven.