Well, since I'm the one who questioned it, I should probably weigh in here.
I do work in nursing homes, senior apartments and assisted living centers. I have also worked as a CNA in a past life, all in nursing homes.
To do full body massages, I do have a consent form for the resident to sign. In the case of that resident being incapacitated - mentally or physically unable to sign, their family or a legal guardian fills it out and signs it. If there are conditions contraindicating massage, I send back a physician's release form that states that the client has chosen to receive massage, and requesting the physician specify limitations to the massage. With this form, no doctor has ever said NO massage. Some have said do not increase circulation (in cases of congestive heart failure, for instance), and some have said no pressure, but very light massage is fine. One even said hand, foot, scalp and face massage only, but all have okay'd massage for their patients. However, when I had my old form, asking permission for massage, nursing home (and even assisted living residents) clients with NO contraindicated conditions were told no to massage by their doctors, for no reason other than, "I can give you a pain medication". So, side note, here, some doctors are arrogant enough to not even consider allowing another health care provider to touch their patients, but when told this person has DECIDED, please tell me any SPECIFIC contraindications he/she may have, cooperation is much easier to gain.
But back to your question, lol. I do go into one assisted living home twice a month to provide short massages for whoever would like that. I check in with the nursing staff when I arrive, and they let me know who I should not offer massage to. That is who has a stomach virus right now, etc. I'm told if someone has an infected toe, which has happened once in the 2.5 years I've gone there, so that I will leave that foot alone. I have a note pad so I can write down specific instructions, but that rarely gets used, other than to remember *Mary* will be back in an hour, try not to forget her, etc. Then, I go to the living areas first, offer massage to whoever is there, then knock on room doors, offering massage. I do nothing that is medically contraindicated - hand, foot, sometimes shoulders or a sore leg. Mostly they are 5-10 minute massages, so I can see everyone. Since the management is paying and the resident is consenting or not consenting on the spot, there is nothing invasive in any way, family members are casually told that I do this. The response from family has been 100% "Thank you!!!!!!!!" They absolutely love that someone is going in regularly just to offer touch to their loved ones.
I started by sending letters to each home in the area, stating that I would like to work with the elderly, described the one situation I already was working, and enclose my brochures. I called back a week later to ask if I could meet with them and get them more brochures to give to residents and families. Most took me up on that. In the places where residents don't need a lot of care and make their own medical & social decisions, I met directly with the residents to see what they were interested in receiving. In those places, residents want full body massage, and I have a regular schedule, a sign up sheet, and go in with the table and sheets. Some places, the directors called to ask for paperwork for a specific resident, because the family loved the idea and was ready to pay for massage. Once, I even had a legal guardian who needed to spend down a lady's account, and thought that getting her weekly massage was a wonderful way to do that. In those cases, I had them fill out the intake forms, and only when there was a need (one client later fell and broke her shoulder) did I ask for a physician's release to be signed.
Overthinking is not a bad thing. Gather as much information as you can regarding the places you would like to work and the types of residents they have. Just remember, not all are frail, physically or mentally. All do need to be touched by someone who is not *doing* something TO them - medical procedures (even having BP taken) is NOT fulfilling a need to be touched. They need to be touched by someone who is not in a hurry to get them to bed and get on to the next resident. If all you offer is a hand massage, or resting your hands on their shoulders, you offer something wonderful. The fact that you are trained in massage therapy means you can offer touch that benefits emotionally AND physically. Don't be afraid to go for the physical benefits. Ease those aching shoulders, if you can. Help them stretch out that psoas (GENTLY!!! lol), if you can! Help get that head turning both ways again!
Present yourself as caring about the seniors, present how you can benefit them, present your experience with nursing home populations, then work to meet their needs. You can make money doing this, and the residents and their families AND the nursing home staff will be thrilled to see you.
Oh, and there are certain people who always say no when I ask if they would like some massage. I say okay, and converse with them for a minute or two about the weather, or the new bag on their wheelchair - whatever. They still feel cared for, and everyone sees that all are respected.
I hope this helps, and I hope I didn't get off on too many side trips, lol. I LOVE working with the elderly and the very elderly.