[How big is the impact of the running arm? It is a common sense to exercise the arm when running. The usual explanation is to help maintain the balance of the body. What effect does the swinging arm have on the energy consumed during the entire running session?
According to research by institutions such as the University of Colorado, the normal swing arm can reduce the energy consumption during running, which is 3% lower than putting the arm on the back; it is 9% lower than crossing the arm to the chest; Put your arm on your head 13% lower.
In addition, the study further confirmed that running the swing arm helps maintain balance. When the subject is running in a different position with a non-swing arm, in order to maintain the balance of the body, their shoulders will have a greater degree of twist.
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