Paraplegics must exercise their legs on a daily bases, in order to keep bones and muscles in reasonable condition & prevent irreversible degeneration. Another relevant group are people in need for walking rehabilitation (after stroke, hip replacement, etc).

The clinical benefits of upstanding position & daily physiotherapy exercise via actual walking, are well-known & documented. The most common exercise method available for Paraplegics is physiotherapy. Machine aided therapy is available but its effectiveness is very limited, by high costs (over $350K) & high dependency on caregivers.

Other existing methods require assistance of professional nursing personnel. Furthermore, all existing technologies provide narrow and limited solutions.

Most devices available today (tilt-beds, lifting-chairs, walkers, electric wheelchairs, etc.) deal with only a single problem each. Some are not stable and safe enough while operated in an upstanding motion mode. In addition, these devices are expensive, & the combined needs for several devices required to satisfy all patient's day-to-day needs (mobilization, lift and exercise),mean extremely high costs and low availability.