Ewa Kulis, Zofia Szczuka, Anna Banik, Maria Siwa, Monika Boberska, Dominika Wietrzykowska, Hanna Zaleskiewicz, Ryan E Rhodes, Theda Radtke, Konstantin Schenkel, Nina Knoll, Urte Scholz, Aleksandra Luszczynska
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引用次数: 0
Abstract
Objective: This study was designed to investigate the effects of individual, dyadic, and collaborative planning on moderate-to-vigorous physical activity (MVPA; primary outcome) and energy-dense food intake (secondary outcome) in dyads of parents and their 9-15-year-old children. Individual planning reflects an "I-for-me" planning of one person's behavior. Collaborative ("we-for-us") planning refers to joint planning of both dyad members' behavior, whereas dyadic ("we-for-me") planning involves joint planning of only the target person's behavior.
Method: N = 247 dyads participated in a randomized controlled trial with individual, dyadic, or collaborative physical activity (PA) planning and control conditions (education about PA, sedentary behavior, nutrition, energy intake-expenditure balance). MVPA was measured with ActiGraph wGT3X-BT accelerometers at baseline, 1-week, and 36-week follow-ups. Energy-dense food intake was self-reported at baseline, 9-week, and 36-week follow-ups. Linear mixed models were fit for parents and children separately.
Results: At the 36-week follow-up, children in the dyadic "we-for-me" planning condition decreased their MVPA compared to the control condition. At the same time, children in the dyadic planning condition also decreased energy-dense food intake at the 36-week follow-up. No effects were found among children in individual and collaborative PA planning conditions. Parents in any experimental conditions decreased energy-dense food intake.
Conclusions: Children's decrease in MVPA in dyadic PA planning condition was offset by a reduction of energy intake, which may represent a compensatory mechanism. The limited effectiveness of the dyadic "we-for-me" interventions in parent-child dyads may result from young people's needs for individuation and their reactance to parental support. (PsycInfo Database Record (c) 2025 APA, all rights reserved).
期刊介绍：
Health Psychology publishes articles on psychological, biobehavioral, social, and environmental factors in physical health and medical illness, and other issues in health psychology.
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