As Mick mentions in his remark, "to deem in shape" is a bit aged-fashioned although not, I think, enough that you shouldn't learn the way to use the idiom. I would not phone it "Victorian" English, as it is a phrase that sees regular use even currently. As described previously https://cat-grooming-uae00875.bloguerosa.com/35652298/cat-grooming-uae-an-overview