The secret of the movement is movement! The day when we can not move is that the mechanical problems begin to happen. It is therefore important to move with intelligence all muscle groups of the body. With suitable work, taking care of posture and joints, seniors must always keep moving. My experience and the many years that I sometimes play to you, allow senior citizens, whatever their age, feel quickly the benefits of the work. The goods will not be physical but also mental, of course.