Sorry, I didn't pay attention to that distinction, and it is different. In that sequence I'm more concerned about his arm fatigue (though if he's working properly on the mound, his legs will be tired, too). With my son, I would treat it pretty much like normal pitching days rest. The elbow and shoulder are fatigued and in recovery mode, and I don't want him throwing hard to any base during that time.
Factoring in all these rest days, off day training, mental preparation, and I assume hitting... it just doesn't make much sense to me unless your talking about pitching a few innings here and there.