Everything Seeingblind mentioned above plus maybe:
Training background
Cycle history / experience
Cycle dosages or changes
Measurements
Goals
Contest prep.
Contest dates or count downs
Posing information or tips
Any mental issues or thoughts that arise which may become a barrier +/or how to prevent or overcome them
Injuries
Physiotherapy, massage therapy, other treatments, etc.
Anything that motivates them or us
Anything new or experimental
OD