Motivating Physical Activity, walking in the forest

Motivating, monitoring, and maintaining physical activity by smartphones in overweight women and men

Sustaining healthy lifestyle in everyday routines has proven particular challenging. This project uses smartphones as personalized lifestyle devices to monitor, motivate, and maintain physical activity in overweight individuals.

Background

In most lifestyle-based interventions, a beneficial health effect is observed while the intervention is ongoing. However, in the transition from exercise intervention to everyday routine, outcomes regarding the maintenance of physical activity are often disappointing. This project utilizes smartphones as personalized lifestyle devices to monitor, motivate, and maintain physical activity in overweight individuals. Researchers with medical, technological, and social sciences expertise collaborate closely in an interdisciplinary research environment to study existing and develop new smartphone applications to provide valid assessments of physical activity, behavior, and biofeedback concerning physical activity. The aim is to improve the understanding of the transition from exercise intervention to everyday routine in order to promote maintenance of an active lifestyle in overweight individuals.

Project Objectives

Seventy percent of the Danish adult population owns a smartphone, which via its built-in GPS, wireless technology, and accelerometer can be used to monitor physical activity level. In this project, we will examine the ability of smartphones to precisely monitor energy expenditure in different domains of everyday life. Such measurements would enable us to determine the domain-specific compensation for an increase in physical activity in one domain (i.e., leisure or transportation); in other words, if an increase in exercise energy expenditure in one domain is absorbed in another domain. In this project, the smartphone-technology results obtained will be directly compared to measurements of energy expenditure by indirect calorimetry and doubly-labeled water in selected participants from the GO-ACTIWE project.

The aims are to:

  • validate smartphone technology for monitoring 24-hour energy expenditure as well as energy expenditure in different domains of everyday life
  • determine the effectiveness of a structured exercise intervention (GO-ACTIWE) to increase 24-hour energy expenditure
  • detect if an increase in energy expenditure in one domain (e.g., leisure or transportation) is absorbed in another domain

Contact

Bente Merete Stallknecht
Professor
Department of Biomedical Sciences

Contact

Jakob Eg Larsen
Associate Professor
DTU Compute
+45 45 25 52 65

Contact

Simon Due Kamronn
PhD student
DTU Compute
+45 40 92 97 92
http://www.cachet.dk/research/Research-Projects/motivating-physical-activity
17 DECEMBER 2018