The Effect of Weight-reduced Upon Physiology and Exercise Performance

[[abstract]] 減重對一般人而言是為了健康及美觀，可是對有運動級別的運動選手，就要特別注重體重的控制，不僅僅是為了健康及美觀，還要為了其比賽級別的選擇及運動成績的表現。帆船運動選手常常在平時練習的時候，就忽略體重增減的重要，往往到了比賽為了選擇比較好得名次的級別，或者是為了避開強勁的對手，而以增加體重或降低體重，以選擇對自己更有利的比賽賽程及對手。然而，這些選手並不知道體重對風帆在海上航行迎風逆風時其力矩的改變所扮演的角色，增加體重對風帆在海上力矩的表現絕對是負面的影響，而降低體重如果是以正常的過程減輕重量，則對帆船運動選手運動表現的影響是正面的。然而，一般選手的作法是反其道而行，想要在最短的時間內達到其減重的目的，其最快的方法就是降低身體的水份，諸不知其結果會造成反效果，所以帆船選手若能瞭解減重的正當途徑，則平常訓練時就會知道控制自己的體重，以達到訓練的目的。 General speaking, the purpose of weight-reduced is focus on the heath and figure of body. However, Not only for health and beauty but also are athletes focus on their performance of exercise. In general, athletes do not pay much attention to their weight-controlled in off season. When the regular season is coming up, they are worried about their weight-controlled since they are over weight. In this case, subjects have to reduce their weight to qualify their weight measurement before the competition. For athletes, the purpose of weight-reduced is to choose the matches which are easy to get ahead or to defend their championship. To reduce their weight in a short period of time, it is whether good or bad to their health and their performance on exercise competition or not. It is the point of the discussion and, also, it can be applied to other exercise competitions, which are divided to several grades