Wheelbarrow Sit ups from Sitting on a Ball
I always try to make activities more dynamic. A ball really helps meet that goal. I remember that a pole can statically weight bear. Muscles are more active in dynamic weight bearing. I like using a ball to add more movement in the weight bearing. The further out from the ball I put the object to be picked up the more challenging this activity is. I also make sure I put the toy far enough behind the child to insure rotation and leaning posteriorly beyond their lateral midline to pick up the object. Note how I am blocking across the pelvis to ensure rotation of the trunk. I usually have to help the child get weight bearing on the near arm and encourage reaching across midline to pick up the toy with the opposite hand.