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)

Theda Radtke , Aleksandra Łuszczyńska , Konstantin Schenkel , Stuart Biddle , Urte Scholz

Abstract

Background: Most adolescents do not meet the recommendations for physical activity (PA) of at least 1 h per day. Individual planning (IP) interventions, including forming plans for when, where and how (action planning) to engage in a behavior, as well as the planning for how to deal with arising barriers (coping planning), are effective to enhance PA in adults. Collaborative planning (CP) is conjoint planning of two individuals regarding a behavior which is performed together. It is assumed that CP stimulates social exchange processes between the planning partners. However, it remains unclear whether planning interventions of PA in adolescents are successful and which planning intervention is more effective. Thus, this cluster randomized controlled trial (RCT) examines changes in daily moderate-to-vigorous PA in adolescents’ friendship dyads resulting from planning. Individual self-regulating mechanism and social exchange processes are proposed as mediating mechanisms of the effects of planning for health behavior change. Methods: A single-blind four-arm parallel-group cluster-RCT is used. The sample consists of 400 friendship dyads between 14 and 18 years of age. As the recruitment takes place in schools, a cluster randomization of the schools is used to enroll dyads to (a) an IP intervention, (b) a CP intervention or (c) one of the two no-planning control conditions. Devise-measured and self-reported PA as the primary outcomes, self-regulatory strategies, and social exchange processes as secondary outcomes are assessed at three or four time points. After baseline measurement, the baseline ecological momentary assessment of the main variables takes place for 8 days followed by the intervention and a 7-days diary phase. Follow-ups are 1 month and 6 months later. Subsequent to the six-month follow-up, another 7-days diary phase takes place. Discussion: This is the first study examining IP in comparison to CP in adolescents applying a single-blind cluster RCT. Consequently, the study allows for understanding the efficacy of individual and collaborative planning and the underlying mechanisms in adolescent dyads.
Autor Theda Radtke
Theda Radtke
-
, Aleksandra Łuszczyńska (Filia we Wrocławiu / II Wydział Psychologii we Wrocławiu)
Aleksandra Łuszczyńska
- II Wydział Psychologii we Wrocławiu
, Konstantin Schenkel
Konstantin Schenkel
-
, Stuart Biddle
Stuart Biddle
-
, Urte Scholz
Urte Scholz
-
Tytuł czasopisma/seriiBMC Public Health, ISSN 1471-2458, (A 35 pkt)
Rok wydania2018
Tom18
Nr911
Paginacja1-11
Objętość publikacji w arkuszach wydawniczych0.5
Słowa kluczowe w języku angielskimAction planning, Coping planning, Collaborative planning, Adolescents, Physical activity, Individual self-regulation strategies, Social exchange processes, Dyads, Ecological momentary assessment
Klasyfikacja ASJC2739 Public Health, Environmental and Occupational Health
DOIDOI:10.1186/s12889-018-5818-6
URL https://doi.org/10.1186/s12889-018-5818-6
Języken angielski
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A cluster randomized_oświadczenie Łuszczyńska.pdf 545.87 KB
Punktacja (całkowita)35
Żródło punktacjijournalList
Wskaźniki publikacji Scopus SNIP (Source Normalised Impact per Paper): 2016 = 1.259; Impact Factor WoS: 2017 = 2.42 (2) - 2017=3.039 (5)
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