The former England striker has managed just 53 minutes for Stoke in four substitute appearances since signing as a free agent in September.
And he was handed a punishing session before the 1-0 home victory over Fulham as he recovers from a hamstring injury.
Owen said: "I'm back in full training.
"The physios and the medical team were up at the stadium for Saturday's match. So I trained there.
"They made me run up every stairway at the ground.
"It was a hard old session."