There are some general ideas to keep in mind when analyzing strokes as a swimmer:
- Streamlining is key (you want to create as little resistance as possible as you move through the water by staying as horizontal as possible; keeping your head, neck and spine in a straight line; and keeping a low profile while breathing so you don't interrupt the stroke)
- Keep a firm anchor on the water with your hands/arms in order to maximize how far you move with each stroke (you want to constantly keep your hands and arms in a position that moves the body forward, not up or down or side to side. Swimmers use lots of different stroke variations but all good swimmers are effecient at maximizing the amount of distance they move through the water with each stroke)
- Keep a steady, fast kick (a steady fast kick keeps the body horizontal and thus more streamlined and provides a steady base of propulsion to help get more distance with each stroke)
As an example, if you are a muscular teen you may work on a deep pull with little s shaped movement to maximize your upper body musculature. If you are a petite female, you may want to really focus on a streamlined position using lots of sculling (the s shaped hand/arm movements to maximize the amount of water you move through with each stroke in a more efficient manner).