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Genevieve F. Dunton, Yue Liao, Stephen Intille, Jennifer Wolch, and Mary Ann Pentz


This study used real-time electronic surveys delivered through mobile phones, known as Ecological Momentary Assessment (EMA), to determine whether level and experience of leisure-time physical activity differ across children’s physical and social contexts.


Children (N = 121; ages 9 to 13 years; 52% male, 32% Hispanic/Latino) participated in 4 days (Fri.–Mon.) of EMA during nonschool time. Electronic surveys (20 total) assessed primary activity (eg, active play/sports/exercise), physical location (eg, home, outdoors), social context (eg, friends, alone), current mood (positive and negative affect), and enjoyment. Responses were time-matched to the number of steps and minutes of moderate-to-vigorous physical activity (MVPA; measured by accelerometer) in the 30 minutes before each survey.


Mean steps and MVPA were greater outdoors than at home or at someone else’s house (all P < .05). Steps were greater with multiple categories of company (eg, friends and family together) than with family members only or alone (all P < .05). Enjoyment was greater outdoors than at home or someone else’s house (all P < .05). Negative affect was greater when alone and with family only than friends only (all P < .05).


Results describing the value of outdoor and social settings could inform context-specific interventions in this age group.

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Steven J. Petruzzello and Allyson G. Box

). Examining acute bi-directional relationships between affect, physical feeling states, and physical activity in free-living situations using electronic ecological momentary assessment . Journal of Behavioral Medicine, 40 ( 3 ), 445 – 457 . PubMed ID: 27766481 doi:10.1007/s10865-016-9808-9 10.1007/s10865

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four programmes. Furthermore, it will describe the status of the joint efforts to integrate the support for health behaviour change into the implementation of the NCD strategy. Session: Physical activity research in vulnerable populations using Ecological Momentary Assessment (EMA) Sex differences in