Hi IndigoBell, DD1 has a brain malformation, which the doctors don't really know much about. They know she has it, ie. the MRI scan shows it IF you know what you are looking at. It isn't 'gross' enough to be like 'a black space where there should be x', but more 'this is a bit small, that is a bit narrow, the other is a bit asymmetric, the lining is a bit 'odd'' etc. So people who know what they are doing would say 'not right' but a more generalist doctor may not even recognise that it isn't right, IYSWIM.
What that means, is that we don't know what causes DD1's difficulties. She has global needs. Gross motor (gait issues, instability, etc), fine motor, S&L, behaviour, inattention, impulsivity, sleep issues, etc.
I think it is her brain that stops her being able to jump. She doesn't (according to the Physios) have structural issues with jumping, but she can only jump on a flat surface with both feet, about 5 cms off the floor. She can't jump off of a raised surface at all. She thinks she can, gets to the edge, then her body totters on the edge and she walks off of the edge!
Yes, I am grateful that she can speak, can walk, etc. It still doesn't make it any easier when I see her 2½ year old sister doing things so effortlessly, and have to tell my 5 year old DD that I don't know if she will jump. I always try and give her a fair answer: she's got learning disabilities, she's not stupid. So, all I can tell her is that I don't know when her brain will let her jump. It may be soon, it may take a long time, or her brain may decide that it just doesn't do jumping.
As I said, I was talking of 'disabled' - in ' ' marks. Not disabled in terms of physical or mental function. Actually, two people can have exactly the same level of physical function, but one can be more 'disabled' by it than another. There are lots of factors that contribute to the level of 'disability' a person has.