You can refer to the following link to see if there is something you can use:
Since you own a fitness facility I would have a lawyer do a liability release form that will cover you from all kind of legal issues which you might face in the future. As for PT cards you can easily design one on your own which you can use and/or pass to your trainers.
I hope this helps.
I have a medical history form that I made up many years ago & still serves me well. E-mail me ([email protected]) and I’ll be happy to send it to you. But check out the IDEA link that Harris suggested, that’s a great resource. Good luck with your new facility – I wish you the best.