Inactivity
Conditions
Interventions
Group 1: This study is a factorial within-person (n-of-1) randomised controlled trial, in which 2-day periods (not participants) are the unit of randomization. For each 2-day period in the trial, par
(B) smartphone notifications to set a physical activity step goal and make a physical activity action plan
(C) smartphone notifications with feedback about physical activity steps taken, goal progress and goal achievement
or (D) both B and C. The day immediately after a 2-day period in which the participant has received condition B, C or D, no intervention will be delivered so as to allow the effects of the previous in
Sponsors
University of helsinki
Eligibility
Sex/Gender
All
Age
18 Years to 65 Years
Inclusion criteria
Inclusion criteria: Adult volunteers (>18 y) who provide informed consent will be eligible to participate in the study. To be included in the study, an individual must be able to understand English in the mobile app, have no counter-indications to PA (physical activity), own a smartphone with compatible operating system (iOS: version 8 or higher; Android: version 4.1 ‘Jelly Bean’ or higher), be willing to install the PRECIOUS application on said smartphone for a 30-day period, be willing to complete questionnaires and interviews before and after the study, and be willing to wear an accelerometer or activity tracker for the duration of the study.
Exclusion criteria
Exclusion criteria: Due to possible confounding effects, participants will be excluded from participating if they have previously used other tools or apps related to physical activity, lifestyle or healthy diet, which might confound results with PRECIOUS app.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| 1) Daily steps collected with activity bracelet; 2) Frequency of goal setting, objectively tracked by the app | — |
Secondary
| Measure | Time frame |
|---|---|
| Achievement of PA (physical activity) goals; Frequency of action plan completion; Frequency of self-monitoring within the app; Engagement with and use of other components of the Precious service; Responses to ecological momentary assessment items on motivation. Effects of intervention components on outcomes will be assessed with both intention-to-treat and per-protocol analyses. Cross-lagged associations of psychological and behavioural variables will also be examined, and control variables such as self-reported pain, illness, and perceived barriers will be included in analyses where appropriate. Interviews will be conducted with participants at the conclusion of the trial, and participants will complete a Firstbeat lifestyle assessment at the beginning and end of the trial. The Firstbeat assessment will offer participants information on their physical activity, sleep, and stress levels, based on heartrate variability data gathered from a small chest-worn device that they will wear for 1 day (more info about this available at https://www.firstbeat.com/en/wellness-services/individual-wellbeing/). | — |
Countries
Finland
Contacts
Public ContactAri Haukkala
University of helsinki
Outcome results
None listed