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General strength exercises are the physical exercises that are used in overall body conditioning. They are not directly related to the specific actions seen in a specific sport (i.e., strengthening the muscles as they are used in a specific sport and increasing an athlete's functional potential for improved performance).〔Yessis, Michael. ''Build A Better Athlete''. Equilibrium Books, 2006.〕 The overhead press exercise which is used by runners can illustrate the concept of a general strength exercise. It is a common exercise in which the arms move directly upward overhead. In running, however, the arms move in a forward-backward motion in relation to the trunk. Thus, the overhead press is a good exercise for strengthening the shoulders and arms, but, even though it uses some of the same muscles that are involved in running, it is not directly related to running.〔Yessis, Michael. ''Explosive Running''. Ultimate Athlete Concepts, 2011.〕 If an athlete has weak shoulders this exercise can improve strength capabilities 〔Zatsiorski, Vladimir and Kramer, William. "Science and Practice of Strength Training". Human Kinetics, 2006.〕 which may indirectly help an athlete's arms during a run. This exercise is not, however, as effective as an exercise in which the arm and shoulder movements duplicate the exact action (pathway) seen in running. This is known as a specialized exercise. An example of a specialized exercise for the shoulders is driving the arm from behind the body to in front of the body in the same pathway and in the same range of motion as seen in the running stride. The key to improving athletic performance is to perform general exercises to develop a base and to then perform special exercises that duplicate the movements and actions seen in the actual skills execution. In this way, the development of the physical abilities that are specific to any sport will have the greatest impact on maintaining or improving the athlete's ability to perform better. Because of the need for skill duplication most exercises are best done with rubber tubing as in the Active Cords set. The cords are especially important for the leg, hip and shoulder actions. The reason for this is that it is very difficult and in some cases impossible, to duplicate the exact movements of the legs, hips and shoulders with dumbbells, barbells or machines. Medicine ball exercises are also used for strength and explosive muscular development. == References == 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「General strength exercise」の詳細全文を読む スポンサード リンク
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