Cerebral Palsy maybe/maybe not

Gross mass action type can be likened to the entire body on one side - from shoulder to toes - being as if of wood, solid. There is very little actual hip motion if you look closely. Most are fooled and miss that fact. In, say, a left dense hemiplegia, what happens in walking is that when you think the left hip is flexing you didn't notice that the torso leans back as much as the thigh "flexes" forward.

So, in actuality, apparent left hip flexion is the RIGHT hip extending.

The intact side develops a really complex mode of movement. It is doing everything. It lifts the left hemi-body off of the floor and tilts the stiff side so