NCT03575559: TWOgether

TWOgether - From Sport Zero to Sport Hero

Status unknown NA Last updated 4 November 2020

What this trial tests

NA trial testing Individual planning in Physical Activity in 400 participants. Status unknown.

Timeline

18 September 2018

Primary endpoint
1 June 2021

1 June 2022

Quick facts

Lead sponsor	University of Zurich
Phase	NA
Status	Status unknown
Study type	INTERVENTIONAL
Allocation	randomized
Design	parallel
Masking	single
Primary purpose	prevention
Enrollment	400
Start date	18 September 2018
Primary completion	1 June 2021
Estimated completion	1 June 2022
Sites	1 location across Switzerland

Drugs / interventions tested

• Individual planning
• Collaborative planning
• Education and motivation treatment

Conditions studied

• Physical Activity — all drugs for Physical Activity →
• Adolescent Behavior — all drugs for Adolescent Behavior →
• Health Behavior — all drugs for Health Behavior →

Sponsor

University of Zurich

Who can join

Adults 14 to 18, any sex, with Physical Activity or Adolescent Behavior. Patients with the condition only — healthy volunteers not accepted.

Sponsor's own description

BACKGROUND: The physiological and psychological benefits of regular physical activity (PA) and reduced sedentary behavior are well documented. Nevertheless, the majority of adolescents in western countries, e.g., Switzerland, do not meet the recommendations for moderate to vigorous PA of at least one hour per day. Planning interventions, defined as the creation of plans when, where and how to engage in a behavior change, have been proposed as an effective way of translating intentions into action. AIM: The project aims at closing the empirical gap of the question whether or not planning interventions of PA in adolescents are successful and which planning intervention is the most effective one.

In detail, it is aimed for to examine changes in (daily) moderate to vigorous physical activity in adolescents' friendship dyads following (a) an individual planning intervention, (b) a collaborative planning intervention or (c) one of the two no-planning control conditions. Changes in (daily) physical activity will be examined over a period of 6-months. By investigating the intervention effect systematically by means of daily diaries, long-term follow-ups and objective measurements this project will provide a novel knowledge about individual self-regulating mechanism and social exchange processes as the mediating mechanism of the effectiveness of individual and collaborative planning for health behavior change in adolescents. DESIGN: Single-blind four-arm parallel-group cluster-randomized controlled trial with longitudinal design. The assessment of the main and secondary outcomes is conducted at the baseline, at 1 week after the first intervention session, and at 1-, and 6-month follow-ups. The intervention consists of one planning session and one booster session after 1-month. PARTICIPANTS: The sample will consist of 400 friendship dyads between 14 and 18 years of age. A cluster-randomization will assign participants to one of the two planning groups (collaborative or individual) or one of the two control groups. Both partners of the friendship dyad will complete all questionnaires. OUTCOMES: Physical activity constitutes the main outcome, whereas self-regulatory strategies like planning, self-efficacy, as well as social exchange processes like social support are secondary outcomes.

Publications & conference data

1 peer-reviewed publication reference this trial (live from Europe PMC):

1. A cluster randomized controlled trial comparing the effectiveness of an individual planning intervention with collaborative planning in adolescent friendship dyads to enhance physical activity (TWOgether).
   Radtke T, Luszczynska A, Schenkel K, Biddle S, et al · · 2018 · cited 4× · PMID 30041603 · DOI 10.1186/s12889-018-5818-6