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The Human Nutrition Unit UMR 1019 has conceived  ActivCollector : a collaborative system to collect, treat and store data of clinical research. The architecture of this system has been developped with computer scientits. The choice of an open architecture allows novel developments.

The current Web Plateform is composed of 6 modules: project management, users' management, questionnaires, professional web pages, internal messaging and two smartphone applications. The two mobile applications allow studying physical activity  and food choice behaviors (EmouveRecherche http://goo.gl/SHQ0D7 and NutriQuantic) in free-living conditions. From algorithmic treatment of accelerometry data, eMouveRecherche assesses time spent in sedentary posture or in activities of different intensity and the daily energy expenditure of normal-weight or overweight people. NutriQuantic allows to calculate a score of compliance to nutritional guidelines according to the food consumption frequency.