Move Your Spondyl " Better Live Its Rheumatism With the Physical Activity "

By this project, the investigators are going to try to demonstrate that to use objects connected to make a physical activity can have an impact on the clinical activity of the disease by bringing the subjects which present a spondyloarthritis to make a physical activity. The investigators shall show furthermore, than the use of connected objects also has better chances to glue the patients presenting a spondyloarthritis to a practice of regular physical activity that a simple recommendation.