DST for the Elderly

It's a known fact that the older we get, it is more difficult to function independently and to be mobile.
The quality of life is based on mundane activities such as going to the theatre, taking a stroll in the park, or going down to the lobby for a visit with family and friends. Such activities require that the elderly person be independently mobile, and a crucial part of that is the ability to confront stairs, which are everywhere.
The elderly person's fitness and ability to negotiate stairs successfully affect almost every aspect of his everyday life and activities. In extreme cases, an elderly person might not be able to cross the road safely because of the difficulty of mounting a pavement.
The DST's main objective is to train people to use stairs. Elderly people can start training gradually according to their physical abilities. Later on they can increase the height between the steps until they reach the standard height.
Occasionally elderly people suffer a trauma of some kind as the result of a fall, a weakness due to illness, etc... They lose their confidence and find themselves in a vicious circle: insecurity leads to avoiding stairs, by avoiding stairs they reduces their fitness, mobility and quality of life, and so on.
The DST helps people emerge from that vicious circle. It is a user-friendly device; elderly people can set the desired height according to their comfort and eventually attain the physical fitness and confidence required for standard stairs.
The world's population is getting older. The need to train stair-climbing skills increases as we get older. Therefore the DST is a necessary feature of everyday life for elderly people in order to preserve their quality of life.