Training game shape is not advisable in 99.9% of the cases so I'd like to ignore that here.
"Normal" training (I mean Jump Shot, Rebound,...) is not in any way affecting game shape and even if you don't see a skill or game shape improving on the training update, the game shape will have changed and the skill will have improved (at least the subskill which you can't see)
We have both said a lot of things that you are going to regret.