Old time rock and roll

Yesterday was a good day for aging athletes. First, Ronde Barber on Vinny Testaverde:

''He made a couple of good throws for a guy who has been home eating potato chips."

And then Roger Clemens on himself after picking up the win in that 18-inning extravaganza:

''I love this, this is why you get off the couch to play this game."

What's the connection? Could it be the non-stop sitting and snacking?