Investigate feasibility of utilizing EMA in overweight adolescent girls and examine the relationships between EMA results, weight, and behavioral outcomes
♀ 20 11–19 years BMI = 39
(i) 3 extended weekends (Thursady–Monday) (ii) 2 times during weekdays and 4 times on weekends (iii) 14 phone calls
PA, current eating, affect, and social context/A/p.c.
Using EMA to investigate whether children’s perception corresponds with parents’ perception of neighborhood characteristics, the children’s level of PA in those settings, and their engagement in PA in leisure time
♂ 55% 9–13 years
(i) 2 times; spaced approximately 6 months (ii) 4 days (Friday–Monday) (iii) 20 prompts
current activity and physical context—select from the list/A/E
Using EMA to determine whether children change the type of context when they engage in PA after a recent relocation to a SG
♂ 23/♀ 23 9–13 years
♂ 26/♀ 22 9–13 years
(i) 2 times: from May–July to November-December in 2009; spaced approximately 6–12 months (ii) 4 days (Friday–Monday) (iii) 3–7 surveys daily (iv) 20 prompts
current activity, with whom, social and physical context, environmental perception, and enjoyment—select from the list/A/E
Using EMA to describe where and with whom children engage in PA in their leisure time
♂ 53/♀ 44 9–13 years
(i) 4 days (Friday–Monday) (ii) 3–7 surveys daily (iii) 20 prompts
current activity, with whom, and social and physical context—select from the list/A/E
PA: physical activity; SB: sedentary behavior; EMA: ecological momentary assessment; : number of subjects; : SG (a smart growth community); : control group ♂: males; ♀: females; : mean age [years] ± standard deviation; BMI: body mass index [kg/m2]; E: electronic diary/questionnaire on mobile phone with MyExperience software [16]; e: electronic diary in handheld computer; p: pencil and paper diary/questionnaire; p.c.: phone call; A: an accelerometer; HRm: a heart rate monitor.