不論是哪一式，學一種新的泳姿總要投入大量的時間來練習才能學會，游得好。那麼這種時間、精神與體力的投入是否能帶來對等或更多的好處呢？答案是肯定的，請參閱以下文章。同理，一種泳姿有數種游法或技巧，會越多的技巧與游法也有同樣的好處。例如游捷式，可以練不同的踢腿法，在划手一循環(左右手各划一次)可以有 2-beat-kick, 4-beat-kick, 6-beat-kick. 就是手一循環踢兩下、四下或是六下。如果每次都是由一、兩千公尺長泳的人，也不妨每次游的時候都使勁衝個兩、三百公尺。長距離穩定的游與短距離幾次衝刺也會運動到不同肌肉(*)。
長時間做同一個動作，過度使用同一塊肌肉常是造成運動傷害的原因。能持續兩、三千公尺由自由式或是更長的距離的確是個不小的成就，但是適度的休息是避免運動傷害的最佳方法之一，所以喜愛長泳的人，在平日(練)游泳時，最好不要一次游同一個泳姿兩、三千公尺，在中間換別的泳姿游，游個一兩趟也是避免過度使用的方法。
Remarks:
* 根據肌纖維的顏色而分為紅肌（red muscle）與白肌（white muscle）與中間肌 (intermediate muscle) ；這三種肌肉的功用各不相同，紅肌耐力高是負責收縮的慢肌，較不易疲勞，在體內深處接近骨骼；白肌是快肌，動作迅速，位於體表。
Why learn different swimming strokes?
You may be wondering if learning several different swimming strokes besides your preferred swim stroke is valuable or a waste of time.
For example, you may be a beginner triathlete training for a triathlon event next summer that has to learn how to swim quickly.
Or you may be a long-time swimmer that has a good breast stroke or freestyle stroke and you are considering whether you should learn the butterfly stroke or the backstroke.
The Benefits Of Swimming Several Strokes
The answer is that besides the obvious bigger time investment, there really are only benefits to know several different swimming strokes.
When you swim several strokes you use more muscles and your body gets a better workout.The risk of a swimming injury is decreased because you don't always stress the body with the same movements and the musculature is more balanced.Your swimming fun is increased because your workouts are more varied when you can choose among several swim strokes.
The skills that you learn in one stroke can often be transferred to another swim stroke. For example, the balance skills that you learn for the front crawl are also needed in backstroke. Or the body undulation that you need for the butterfly stroke is also an asset while swimming breaststroke.Knowing several types of swimming strokes can also be a big advantage in triathlons. Obviously, if you know freestyle you will swim faster and tire less than if you only swim breaststroke during the event. Switching to breaststroke in turn can be interesting when you need orient yourself, as you have better visibility than when you are swimming front crawl. And if you know backstroke, you can roll on your back when you are tired and take a few strokes in that position to recover.
In conclusion
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So my recommendation is that if you aren't in a big hurry and need to learn how to swim one particular swim stroke as soon as possible, I really pays off to learn how to swim the four strokes.
The story was taken from the URL stated above.
edited Oct. 15/ Aug 28/ Aug. 24, 2012
updated Jun. 29, 2013 (changing photo)
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