Training consists primarily of working on swinging fundamentals.
Hitters may only see a specific opposing pitcher two or three times per season. They do not even get a chance to practice against the best pitches thrown by their own pitchers. Batting practice is thrown at 60 or 65 mph, down the middle of the plate, to practice hitting for placement. The only opportunity a player will get to hit pitches thrown with the speed, placement and intention of striking him out are during the game. This is not the ideal training situation.