I have different sized pillows, covered in "leather", to position people. My head of the table will incline for people who may have vertigo or who can't lie flat. Yes, sometimes that is a struggle for me when their head is not flat, but I make do, by having them lie on their side, for example.
Some people weigh too much for my table, so I scoot an armless chair next to my work area and insert to the best of my ability, but I can only sustain such a strained position for 15 or 20 minutes worth of work. That's better than nothing.
So, whether you have a bad back or other challenges, it all depends on whether an electrologist will contort and arrange things to meet your needs.
Dee Fahey, R.N., C.T.
Licensed by the State Medical Board of Ohio for Nursing license and Cosmetic Therapy/Electrolysis license
British Institute & Association of Electrolysishttp://www.electrolysis.co.uk/?page_id=16