They can imitate a sequence of bilateral, active upper extremity range of motion (UE ROM) exercises. For the UE ROM, reciprocal pulleys will probably require constant cuing and hand-over-hand assistance or grip assistance aids.
Lower extremity range of motion at the hip may be done while seated, one leg at a time.
The tactile cues used for seated activities in ACL 2.2 may be done with fewer rest periods within ACL 2.4 because their sitting balance is better. Hand-over-hand assistance may sustain attention longer after they have had an opportunity to walk.