Physical activity monitoring in Alzheimer’s disease during sport interventions: a multi-methodological perspective oleh Shari David, Christian Hohenfeld, Christian Hohenfeld, Christian Hohenfeld, Luisa Haberl, Jennifer Pahl, Ana S. Costa, Ana S. Costa, Ana S. Costa, Axel Kilders, Frank Hildebrand, Jörg B. Schulz, Jörg B. Schulz, Jörg B. Schulz, Kathrin Reetz, Kathrin Reetz, Kathrin Reetz, Alexa Haeger, Alexa Haeger, Alexa Haeger