With good body posture you would be able to ski much more better than having bad body posture
The control group is usually the group in which none of their variables are changed. This group is used in order to compare it with the outcomes of the other groups.
The Broca's area is located in the lower portion of the left frontal lobe involved in speech and control the language expression. It is usually in the left hemisphere of the brain. This was derived from Pierre Paul Broca to examine patients on dealing with people having speech impairment.