Dr Timo Jämsä, born in 1958, holds a Professorship in Medical Technology at the Faculty of Medicine, University of Oulu, since 2002. He received his MSc in Electrical Engineering from the Faculty of Technology, University of Oulu, and PhD from the Faculty of Medicine, University of Oulu, respectively. He has published over 140 original research articles in biomedical engineering and medical technologies. He has been involved in numerous research projects funded e.g. by EU, Academy of Finland and the Finnish Funding Agency for Innovation TEKES. His main research interests are musculoskeletal biomechanics, eHealth solutions, and technology applications for health promotion and independent living of aging people. The research highlights of his group include biomechanical risk factors of hip fractures, monitoring of health exercise, and technologies for fall detection. He has a number of regional, national and international academic activities. Currently he is President Elect of the European Alliance for Medical and Biological Engineering & Science (EAMBES). He is also member of the Administrative Council of the International Federation of Medical and Biological Engineering (IFMBE).
Interpretation of activity data collected with accelerometers strongly depends on the purpose and health outcome in question and there is no single solution. Instead, a wide range of activity parameters have been presented, e.g. sensor location, sampling rate, acceleration range, pre-processing, analysis algorithm, and selected thresholds define the outcome. This talk overviews some approaches and algorithms for recording physical activity and sedentary behavior, applying data collected with an accelerometer on the wrist and waist in daily life.