Would this female archer have a more powerful aim than the average?

In this myspace video, a gymnast archer is able to make a bullseye when shooting her bow with her feet. Since the leg muscles are more powerful than the arm ones, does she have a more powerful aim* shooting in this fashion than a normal archer shooting with her arms would?

*I am unfamiliar with the proper terminology of archery so “aim” is the closed work I can think of to describe her shooting position and potential.