You pretty much want to use the same forms that you use for any type of training you do with clients. You want to keep it consistent. If you haven’t ever used any type of forms for your programs, you really need to get on it.
If you are an IDEA member there is a icon for “professional forms” on your home page. It is in a group of icons on the right hand side of your home page.
If you are not an IDEA member (you should be), you may be able to find forms on the website of your certifying organization (like ACE, NASM, etc.).