Sport specific training is a myth
Only such thing as functional training, so not doing leg extensions but doing squats instead.
By sport specific training Im not referring to drills done in practice, but more so doing exercises ONLY for your sport and movements.
Athletes need to develop their athletic abilities and all around strength and movement abilities, not do something for a single sport so lets say someone plays tennis. If all they work is muscles involved in hitting the ball (delts, chest, core) they arent going to have much sucess as a athlete.
Train your whole body and become a better athlete.
a sport specific exercise
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