The arm on the MP2 model of the fitness machine does not lock properly, which can allow the arm to swing unexpectedly, posing ...

In the fourth century B.C., the Greek philosopher Aristotle laid down some key principles of running form. "Runners run faster if they swing their arms," he wrote. "There is in extending the arms a ...

While running may seem like a total lower body activity, your upper half does still play a role in helping you to become a stronger and more powerful runner. Read on to learn how your arms contribute ...

Walking is one of the most effective and simple forms of physical activity. Though walking may look simple, the mechanics behind it are far more complex. While walking, people swing their arms. Ever ...