The purpose of strength training is to prepare the body to resist or overcome gravity as demanded by the sport or activity and to use the ground effectively to reduce and produce force. There are many means and methods to achieve this with the key choosing a method or means that is appropriate for the sport and the athlete. Conceptually this is quite simple, but complex in application. Don’t try to make it more complex, make simple incorporate the fundamental movements of pulling, pushing, squatting and all it’s derivatives, rotating, reaching, bending, and bracing. Allow time for adaptation and you will have strength you can use in your sport. What more can you ask?