By moving the point of securing the handholds along the length of the arcuate guide plate, {HEAD ~ the user} can re position the upper ends of the handholds from {TAIL ~ a location} above the user station to a position behind the user station 
By moving the point of securing the handholds along the length of the arcuate guide plate , { HEAD ~ the user } can re position the upper ends of the handholds from { TAIL ~ a location } above the user station to a position behind the user station
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH