Push ups, because it's likely that you'd do push ups in gym. You must have balance to do them.
I think C. Hopefully I helped, health is not really my forte
1) fill out a form requesting your medical records and fax or email it to their office
2)if no form is given, write a letter including your name, SSN, DOV, address and phone number, email, list of records being requested, your delivery option and your signature
3) once the letter is submitted, you should receive your documents within 30-60 days