sore already!

i’ ve had 2 treatments so far, It is Ok but the way I am being asked to get into position is making me feel sore. Simply I am expected to lower myself down from a sitting to a lying down position.The radiographer says she is holding me but i am not really aware of her taking my weight. Wish I had been doing sit ups at gym but it is too late to start now,so getting down and up again is starting to ask more of these muscles than is usual.
Has anyone else had these problems?

I.ve solved it by holding onto my legs as I lower myself. This hurts much less. I was not thinking properly when in there at first.