USA Swimming is undoubtedly one of the strongest bodies in terms of physical strength and conditioning preparation. Training for swimming is not only about improving your technique inside the pool, but there are lots of flexibility exercises, plyometric work, swimming while wearing weights, and resistance training that is needed. Just think of what muscles you use while swimming and you will immediately notice that you make use of practically all your body muscles.
Here are some tips about weight training for swimmers and some guidelines that USA swimming athletes adopt.