new article in sports medicine: “Sedentary Time and Physical Activity Surveillance Through Accelerometer Pooling in Four European Countries”

http://www.sueddeutsche.de/gesundheit/fitness-apps-immer-in-bewegung-1.3294381

Original article: “Feasibility of Obtaining Measures of Lifestyle From a Smartphone App The MyHeart Counts Cardiovascular Health Study” in JAMA http://jamanetwork.com/journals/jamacardiology/fullarticle/2592965