I do not believe you can keep others from providing a similar program to yours. You can copyright/trademark a name for a program and no one can use that name without your consent. And you can patent equipment designs if you can prove that the design is unique and not in existence. But to my knowledge it is not possible to claim the rights to teach a specific exercise. There are named cycling classes, but these programs can’t stop someone from teaching a stationary bike class. There are named kickboxing class formats, etc. But as long as I don’t call my class by a copyrighted name, I can teach anything I want. I could even by the same equipment if it is for public sale and use it in the class. I just can’t use the trademarked name to promote the class.
I could be wrongj, but that is my understanding of this topic. You might want to speak with a copyright/trademark lawyer about it.