Non-Stop, is an app to help children exercise whilst experiencing a condition called Perthes.

Perthes disease is a condition affecting the hip joint in children when the blood supply to the growth plate at the end of the femur becomes inadequate .

Many children recover from the disease without any surgical intervention but this often requires a strict regime of physiotherapy-led exercises which is often difficult to enforce in younger children.

The app has a number of daily stretching and strengthening activities to help support a young person's care in clinic.