Physical activity Other
Conditions
Interventions
Studies 1 and 2 employ a within-person (/dyad) micro-randomised trial (MRT) design implemented over 55 days, conducted via smartphone.
There are small differences between the studies. In Study 1, thr
Burkert et al., 2011) and collaborative planning (i.e., joint planning and joint behavioural performance
Prestwich et al., 2005). Planning involves the concrete details of when, where, and how to implement the behaviour, as well as what to do when obstacles arise.
2. Furthermore, a one-time skilled soci
Sponsors
University of Zurich
Eligibility
Sex/Gender
All
Age
18 Years to 99 Years
Inclusion criteria
Inclusion criteria: 1. Both partners must be at least 18 years of age 2. Partners must be in a romantic relationship with each other and live together for at least 6 months 3. Both partners must be physically active for less than 150 minutes per week 4. Both partners must have the intention to be more physically active 5. Both partners must have a smartphone that they use regularly 6. Both partners must speak German fluently
Exclusion criteria
Exclusion criteria: 1. Having severe health conditions that pose a risk for participation when being physically active
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Moderate-to-vigorous physical activity measured daily using self-report questionnaires (German adaptation from: Amireault, S., & Godin, G. [2015]) and continuously using accelerometers (ActiGraph CentrePoint Insight Watch) over 55 days | — |
Secondary
| Measure | Time frame |
|---|---|
| As the study was designed to address various research questions, there are many potential secondary outcome measures that include, but are not limited to: 1. Relationship closeness and relationship quality measured using daily questionnaires (adapted from Berli, C., Schwaninger, P., & Scholz, U. [2021] over 55 days 2. Mood measured using the short version of the German-speaking mood state scale over 55 days 3. Action and coping planning measured using daily questionnaires (adapted from Scholz, U., Schüz, B., Ziegelmann, J. P., Lippke, S., & Schwarzer, R. [2008]) over 55 days 4. Companionship measured using daily questionnaires (adapted from Stadler, G., Scholz, U., Bolger, N., Shrout, P. E., Knoll, N., & Lüscher, J. (2023) over 55 days 5. Emotional and instrumental social support measured using daily questionnaires (Bolger N., Zuckerman A., Kessler R. C. [2000]) over 55 days 6. Negative and positive social control measured using daily questionnaires (adapted from Butterfield, R. M., & Lewis, M. A. [2002]) over 55 days 7. Sabotaging measured using daily questionnaires (adapted from Ball, K., & Crawford, D. [2006]) over 55 days 8. Commitment measured using daily questionnaires (self-developed) over 55 days 9. Self-efficacy measured using daily questionnaires (adapted from Sniehotta, F. F., Scholz, U., & Schwarzer, R. [2005]) over 55 days 10. Intention measured using daily questionnaires (adapted from Scholz, U., Schüz, B., Ziegelmann, J. P., Lippke, S., & Schwarzer, R. [2008]) over 55 days 11. Action control measured using daily questionnaires (adapted from Scholz, U., Nagy, G., Schüz, B., & Ziegelmann, J. P. [2008]) over 55 days 12. Reactance measured using daily questionnaires (adapted from Scholz, U., Stadler, G., Berli, C., Lüscher, J., & Knoll, N. [2021]) over 55 days | — |
Countries
Austria, Germany, Liechtenstein, Switzerland
Contacts
Public ContactUrte;Pascal Scholz;Küng
;
Outcome results
None listed