The arms are an important weightlifting muscle because of its impact on the rest of the body. Of course guys like to work it out because they have some sense that big arms equals strength. However, the arms, especially the triceps have a much bigger impact. Think about this, weightlifters use their arms to lift weight in almost every exercise. Therefore, free weightlifting routines are extremely important so that weightlifters can learn how to strengthen the arms for more than just appearance.