Background: Back pain and osteoporosis with vertebral fractures are common conditions in elderly women and significantly affect their quality of life. A common complication of osteoporosis are vertebral fractures. Treatment with bone-specific drugs does often not help the pain condition caused by the vertebral fractures even when the progress of the disease has decreased. Vertebral fractures often result in deformation of the spine and poorer quality of life of the individual. The spinal kyphosis also affects the lung function and the effect of the kyphosis itself is severe. Alternative treatments of back pain may lead to reduced drug demand for pain. Physical activity is one of the most important factors that regulates bone mass and can also affect balance and fall risk positively. The back orthosis that we intend to use in the treatment study has been shown in some previous scientific studies to strengthen the muscles in the back and also decrease the pain.