A software system for the assessment of the sleep-wake rhythm using Axivity AX3

Mobility limitations are a major public health concern along with physical inactivity because they limit an individual's independent life, and, worse, have shown to be key risk factor for several morbidity, including cardiovascular. It is important to investigate modifiable factors that might help preserve mobility, especially in later life. In this work we present the development of the software system Axivity, that supports specialists in conducting in-depth research on patient activity, taking into account data recorded by an actigraph (a simple and non-invasive device used to diagnose sleep) and data provided by the patient or care provider, so as to provide also relationships between activity energy expenditure estimated from wrist-worn accelerometers and the intensity of physical activity. It will be shared as open source.