Development and evaluation of two web-based interventions for the promotion of physical activity in older adults: study protocol for a community-based controlled intervention trial

by Saskia Muellmann, Inna Bragina, Claudia Voelcker-Rehage, Eric Rost, Sonia Lippke, Jochen Meyer, Jochen Schnauber, Merlin Wasmann, Merle Toborg, Frauke Koppelin, Tilman Brand, Hajo Zeeb, Claudia R. Pischke
Published 2017-05-01