NCT03011385

Effects of Individual, Dyadic, and Collaborative Plans on Physical Activity in Partner-Partner Dyads

Physical Activity and Health-related Quality of Life: Dyadic Research in the Context of Forming Individual, Dyadic, and Collaborative Plans. Trial 3

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 640 (actual)
• Sponsor: University of Social Sciences and Humanities, Warsaw · Academic / Other
• Sex: All
• Age: 18 Years
• Healthy volunteers: Accepted

Summary

OBJECTIVE: The project aims at investigating of the effects of three types of planning (individual planning, collaborative planning, and dyadic planning) on physical activity among dyads.The influence of three planning interventions are compared with an active control condition, including physical activity education. PARTICIPANTS: The effects of the interventions are evaluated among dyads of two adults (partner-partner dyads). Adults forming dyads (e.g. two romantic partners, two relatives, two co-workers, two friends) who are in regular contact for at least one year will be enrolled. A minimum of 50 dyads enrolled into the each arm of the trial (a total of 200 dyads). The interventions consist of six planning sessions. DESIGN: The dyads are randomly assigned to one of four experimental conditions. The assessment of the main and secondary outcomes is conducted at the baseline, at 1 week after the first intervention session, at post-intervention (after six intervention sessions are completed), and at 6-, and 12-month follow-ups. OUTCOMES: Physical activity constitutes the main outcome, whereas health-related quality of life (HRQOL), body mass index, and sedentary behavior as well as the self-regulatory strategy called the use of planning (individual, dyadic and collaborative) are secondary outcomes.

Detailed description

Individual planning (also known as implementation intentions or action and coping planning) is a regulatory strategy, which refers to making plans on when, where, and how to perform an intended behavior. In dyadic planning, a target person is setting plans together with a partner on when, where, and how the target person will individually engage in behavior change. The concept of dyadic planning differs from the conceptualization of collaborative plans, where two individuals make plans on how to enact a behavior together. The study will evaluate the effects of a short-term planning intervention. The intervention includes a total of six sessions: two face-to-face sessions with the experimenter (delivered over two weeks) and three sessions delivered over phone (over the following three weeks), one face-two-face session (delivered at one month after the third session delivered over the phone). The delivery has an individual format (the experimenter + the dyad). The total time from first to sixth session is 2 months. The setting for the interventions will include physician's offices and participant's home. The same format, schedule, delivery, and setting will be used for conducting active control group procedures.

Conditions

• Health Behavior

Interventions

Type	Name	Description
BEHAVIORAL	Individual Planning	Participants are filling in the planning forms, referring to their individual physical activity. Both members of the dyad form their own, interdependent plans. The following behavior change techniques (BCT) are included in the planning intervention protocol: action planning, barrier identification, prompting self-talk, relapse prevention/coping planning. Applications of all BCT included references to planning.
BEHAVIORAL	Dyadic Planning	Participants are filling in the planning forms jointly. Planning refers to physical activity of only one person in the dyad. The other person in the dyad is actively participating in forming plans by the target person. The following BCT are included in the planning intervention protocol: action planning, barrier identification, prompting self-talk, relapse prevention/ coping planning. Applications of all BCT included references to planning.
BEHAVIORAL	Collaborative Planning	Participants are filling in the planning forms jointly. Planning refers to physical activity of both persons in the dyad. Physical activity may be performed jointly by both persons in the dyad. The following BCT are included in the planning intervention protocol: action planning, barrier identification, prompting self-talk, relapse prevention/ coping planning. Applications of all BCT included references to planning.
BEHAVIORAL	Education	The education group participants receive extended physical activity and healthy nutrition education program. The education includes: (1) the guidelines for physical activity and healthy nutrition, tailored to age and health status of the participants, (2) the examples of exercises and their metabolic equivalent; (3) information about healthy body mass and body composition.

Timeline

• Start date: 2016-12-01
• Primary completion: 2020-02-28
• Completion: 2021-09-30
• First posted: 2017-01-05
• Last updated: 2023-05-09

Locations

1 site across 1 country: Poland