A 12-week Intervention With Motivational Interviewing and Physical Activity Monitoring, to Enhance the Daily Amount of Physical Activity in Community Dwelling Older Adults - a Randomized Controlled Trial

"During the 12-week intervention, the participants will receive seven telephone calls from a physical therapist. The interviews will be held in week 1, 2,3,5,7,9, and 12.~The telephone call will consist of a motivational interview focused on enhancing the daily level of physical activity in the participants.~MI is a form of counselling aiming at prompting increases in self-efficacy, which may leave people more open to and invested in changing their behaviours and shows potential for significant effects for exercise behaviour change.~In addition to the telephone based motivational interviews, the experimental group will also receive the base intervention which is described in detail under the control intervention paragraph."

"The base intervention consists of a physical activity monitor (PAM) for everyday use in the intervention period and a pamphlet with information about Danish recommendations on physical activity in aging populations. The PAM will be the Garmin Vivofit 3 monitor linked to a pre-specified Garmin Connect account. The participants will be asked to install the Garmin Connect application on their smartphone and use the given ID/password in the app. The participants will be asked to wear the monitor 24-hours a day for the 12-week intervention period. The participants can use the PAM as they like but they will be asked to try to use the PAM and the application to enhance their daily level of physical activity."