In everyday life, the right side of Silke Kind's body is often stiff; she trembles when cutting vegetables or using the computer mouse. Table tennis training has a positive effect, says her physiotherapist. However there are hardly any scientific studies on how ping pong affects the symptoms of Parkinson's - the disease itself is incurable. In Germany, there are about 170 Ping Pong Parkinson's support points and the interest is growing.