费德勒2011年澳网男子单打半决赛输球原因主要是体能和年龄问题。体能是网球比赛中最重要的组成环节。网球运动的体能与技能是相辅相成的,体能好有助于技能的充分发挥,反之亦然。良好的体能可以使技能得到充分发挥,使球员保持良好的竞技状态,不断提高运动成绩,防止伤病,延长运动寿命。高大的身材,较好的最大力量、爆发力和持久的耐力水平是优秀网球选手必备的素质。 Federer 2011 Australian Open men’s singles semi-final reason for the loss mainly due to physical and age issues. Physical fitness is the most important part of a tennis match. Tennis physical fitness and skills are complementary, good physical fitness contribute to the full play, and vice versa. Good physical fitness skills can give full play to enable players to maintain a good competitive state, and continuously improve their performance, prevent injuries and extend exercise life. Tall stature, better maximum strength, explosive power and long-lasting endurance level is an essential tennis player qualities.