ACE and NASM both does a great job for the general population, but NASM puts a slight bit more emphasis on corrective exercise. However, any of the certifications you have mentioned will get your foot into the door.
Broadway theatre, commonly known as Broadway, refers to the theatrical performances presented in the 41 professional theatres with 500 or more seats located in the Theater District and Lincoln Center along Broadway, in Midtown Manhattan, New York City.
Broadway Theatre (53rd Street) This article is about an individual theatre of this name. For theatre district and the collection of 500+ seat theatres in New York City that are referred to as Broadway, see Broadway theatre. Entrance, showing The Color Purple. The Broadway Theatre during the run of Sister Act, ca. 2011.