本篇文章以探討排球運動員大腿運動傷害為主要課題，包含股四頭肌與大腿後側肌群，因為跑與跳是排球運動的特徵，要跑的快，要跳的高，無非是仰賴良好的腿部肌力。大腿後側肌群則是主導著所有運動的主要原動力，它決定了你是否會成為一位優秀的運動員，而股四頭肌是你在進行跳躍動作及移動時的主要肌肉，認識運動傷害，預防運動傷害，運動傷害後的處理與復健，都是一位優秀運動員需要具備的基本知識。肌肉拉傷的成因為「肌肉本身收縮時突然受阻所產生的拉傷」。由其成因得知肌肉本身是此類運動傷害的問題關鍵，而關鍵核心又來自於肌肉的柔軟性和肌力不足。換句話說，優秀的運動表現除了接受完整的訓練之外，健康的身體亦不容忽視！

This article mainly discusses topics about femoral injury of volleyball player, including the quadriceps femoris and quarter femoral muscles. This is because running and jumping are the two characteristics of volleyball sport. And strong femoral thew is required to run fast and jump high. The quarter femoral muscles contribute as the driving motor, which dominates all sports and decides an outstanding athlete. The quadriceps femoris executes the jumping action and movement. To qualify as an excellent athlete, one is required to acquire knowledge about sport injury, how to prevent it, and aftertreatment and recovery as basics. Muscle stain results from "sudden backset of contractile muscles themselves". This obviouly points out that "muscle" itself is the issue of the very sort of Injury, and the key point of this issue lies hi the insufficiency of muscle extension and thew. In other words, excellent performance depends not only on a complete set of training, but also a healthy body!