Case: 45 year old patient with R BKA and L knee disarticulat…

Case: 45 year old patient with R BKA and L knee disarticulation from and on the job accident where he was trapped behind the truck bumper and the wall of a wash out stall. No other internal injuries noted. Patient transferred to in patient rehab once medically stable. PT POC includes patient education, stump care, TE, TA, balance, functional mobility, stump care, and pre-prosthetic training.Of the following what is the most appropriate pre-prosthetic training activity?