I recently noticed that my son has some hypermobile finger joints. The top joint of his index finger and thumb on his right hand, the hand he writes with, bend back really far as if they were made of rubber. I am wondering if this, along with the hypotonia, are the reason for his motor dysgraphia. It looks to me like the hypermobility in his finger joints might cause him to have to work harder to control the pencil which could possibly contribute to the fatigue in his hand when he writes. I am not sure exercise would help with hypermobile joints.
