1 Timothy 4:7-8 discipline yourself for the purpose of godliness; 8 for bodily discipline is only of little profit, but godliness is profitable for all things, since it holds promise for the present life and also for the life to come.
Notice, though, that it does NOT say that "bodily discipline is of NO profit." No, it is of little profit. So beware of attempting to look like this buff guy.
Point of the post: Don't be obsessive about physical, bodily training. Yet, please keep in mind, there is some profit to it :=)
Remember, if you ever see a fitness center with an escalator leading up to it, that should be a sure indication to not get a membership there :=)