606420 An orthosis for use on the hand of a person for training a person in the appropriate ergonomic use of the hand has a hand portion and a finger portion 4 in the form of an open sleeve just for the index finger (and no other fingers) of the person’s hand. The finger portion is partially resistant to movement relative to the hand portion. The hand portion covers a portion of the back of the hand excluding the thumb and the fingers other than the index finger and includes an opening 3 to expose the portion of the palm 7f proximate the second, third and fourth fingers.
