An elderly woman wants to be outside and participate in social gatherings but tends to be restless and to become overstimulated during group activities. "Ah - that feels really great", says Ingrid, after she sits down in the Protac SenSit^® Nature, which is located on the terrace. She finds a magazine and reads intently. After 45 minutes she gets up, goes indoors and is both happy and at ease for the rest of the day. Since then, she has independently sought out and used the ball chair many times with the same positive result.