Verb form

I was reading Poe's The Murders in the Rue Morgue and stumbled upon a sentence I didn't really understand: "As the strong man exults in his physical ability, delighting in such exercises as call his muscles into action, so glories the analyst in that moral activity which disentangles."

The part I don't understand is the "...as call his muscles into action..." Is "call" supposed to be an infinitive, or perhaps something else?

Thank you for taking your time reading the question (and answering).