The h/p/cosmos® airwalk se 135 is specially constructed for unweighting during locomotion therapy on the h/p/cosmos treadmill locomotion 150/50 DE med or other h/p/cosmos® treadmills. It is a dynamic unweighting system controlled individually via remote control. A display shows the exact unweighting value. When h/p/cosmos® airwalk se 135 is attached to an h/p/cosmos® running machine the full elevation can be used. Direct uninpeded access from the therapist to the patient during mounting, therapy and dismounting. The h/p/cosmos® airwalk se 135 can also lift wheelchair users out of their wheelchairs and lowering them back again at the end of the therapy.