scholarly journals Measuring Criterion Validity of Microinteraction Ecological Momentary Assessment (Micro-EMA): Pilot Study with Physical Activity Measurement (Preprint)

10.2196/23391 ◽  
2020 ◽  
Author(s):  
Aditya Ponnada ◽  
Binod Thapa Chhetry ◽  
Justin Manjourides ◽  
Stephen Intille
Keyword(s):  
Physical Activity ◽  
Pilot Study ◽  
Ecological Momentary Assessment ◽  
Criterion Validity ◽  
Activity Measurement ◽  
Physical Activity Measurement ◽  
Ecological Momentary ◽  
Momentary Assessment

scholarly journals Measuring Criterion Validity of Microinteraction Ecological Momentary Assessment (Micro-EMA): A Pilot Study with Physical Activity Measurement (Preprint)

2020 ◽  
Author(s):  
Aditya Ponnada ◽  
Binod Thapa Chhetry ◽  
Justin Manjourides ◽  
Stephen Intille
Keyword(s):  
Physical Activity ◽  
Pilot Study ◽  
Ecological Momentary Assessment ◽  
Activity Monitor ◽  
Criterion Validity ◽  
Self Report ◽  
Activity Measurement ◽  
Research Grade ◽  
Ecological Momentary ◽  
Momentary Assessment

BACKGROUND Ecological momentary assessment (EMA) is an in-situ method of gathering self-report on behaviors using mobile devices. Microinteraction-EMA (Micro-EMA or μEMA) is a type of EMA where all the self-report prompts are single-question surveys that can be answered using a one-tap glanceable microinteraction, conveniently on a smartwatch. Prior work suggests that μEMA may permit a substantially higher prompting rate than EMA with higher response rates. However, the validity of μEMA self-report has not yet been assessed. OBJECTIVE In this pilot study, we evaluated the criterion validity of μEMA on a smartwatch, using physical activity (PA) assessment as an example behavior of interest. METHODS Seventeen participants answered 72 μEMA prompts each day for one-week, self-reporting whether they were doing sedentary, light/standing, moderate/walking, or vigorous activities at each prompt. Responses were then compared with a research-grade activity monitor worn on the dominant ankle continuously measuring PA. RESULTS We observed significantly higher (P <.001) momentary PA levels on the activity monitor when participants self-reported (using μEMA) engaging in moderate/walking or vigorous activities as compared to sedentary or light/standing activities. CONCLUSIONS For PA measurement, high-frequency μEMA self-report could be used to capture the information comparable to that of a research-grade continuous sensor – suggesting criterion validity.

scholarly journals An ecological momentary assessment study of physical activity behaviors among mothers of toddlers from low-income households

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Katherine L. Campbell ◽  
Yan Wang ◽  
Ann Pulling Kuhn ◽  
Maureen M. Black ◽  
Erin R. Hager
Keyword(s):  
Physical Activity ◽  
Low Income ◽  
Ecological Momentary Assessment ◽  
Normal Weight ◽  
Activity Count ◽  
Group Relations ◽  
Environment Factors ◽  
Group Relation ◽  
Ecological Momentary ◽  
Momentary Assessment

Abstract Background Mothers of young children from low-income communities may be vulnerable to barriers associated with low physical activity. The purpose of this study was to examine associations between home environment factors and maternal physical activity among mothers of toddlers. Methods Mothers of toddlers (n = 200) recruited from low-income communities simultaneously wore an ankle-placed accelerometer and were given a personal digital assistant for ecological momentary assessment. Mothers received randomly prompted questions about their current environment, activity, and social setting several times a day over eight consecutive days. Data were analyzed using linear mixed-effects regression models with random intercepts; within-group and between-group relations between physical activity and environment factors were disaggregated. Results Within-group relations included higher physical activity counts for specific mothers with television off versus on (95% CI = 130.45, 199.17), children absent versus present (95% CI = 82.00, 3.43), engaging with a child versus not (95% CI = 52.66, 127.63), and outside versus inside location (95% CI = 277.74, 392.67). Between-group relations included higher physical activity on average when other adults were absent versus present (95% CI = − 282.63, − 46.95). Recruitment site (urban vs. semi-urban) significantly moderated the within-group relation between being outside versus inside and activity count (β = − 243.12, 95% CI = − 358.74, − 127.47), and showed stronger relations among urban mothers (β = 440.33, 95% CI = 358.41, 522.25), than semi-urban (β = 190.37, 95% CI = 109.64, 271.11). Maternal body weight significantly moderated the within-group relation between being located outside versus inside the home and activity count (β for interaction = − 188.67, 95% CI = − 308.95, − 68.39), with a stronger relation among mothers with normal weight (β = 451.62, 95% CI = 345.51, 557.73), than mothers with overweight/obesity (β = 271.95, 95% CI = 204.26, 339.64). Conclusions This study highlights home environmental factors, including screen time, the presence of others (adults and children), and location (i.e., outside versus inside) that may relate to maternal physical activity behaviors. Understanding factors associated with physical activity could reduce physical activity disparities. Trial registry ClinicalTrials. NCT02615158, April 2006

scholarly journals Exploring Feelings of Pleasure and Purpose Associated With Older People’s Activities Using Ecological Momentary Analysis: An Observational Study

2020 ◽  
pp. 1-8
Author(s):  
Karen E. Hancock ◽  
Paul Downward ◽  
Lauren B. Sherar
Keyword(s):  
Physical Activity ◽  
Ecological Momentary Assessment ◽  
Physical Activity Guidelines ◽  
Outdoor Activities ◽  
Highly Active ◽  
Actigraph Accelerometer ◽  
Confounding Variables ◽  
Ecological Momentary ◽  
Momentary Assessment ◽  
Sedentary Activities

Momentary feelings of pleasure and purpose can be sources of intrinsic motivation, but momentary purpose is rarely studied. Activities, contexts, and feelings of retired/semiretired adults (n = 67, aged 50–78 years) were captured using ecological momentary assessment. Participants provided 2,065 valid responses to six daily smartphone surveys for 7 days. Physical activity was measured by waist-worn ActiGraph accelerometer. Pleasure (measured by affective happiness) and purpose outcomes were regressed on activities, context, and potential confounding variables. Interactions between activities and contexts were explored. Participants were highly active: 98.5% met physical activity guidelines. Sedentary activities were negatively associated with sense of purpose, especially when indoors. However, social sedentary activities were positively associated with feelings of happiness. Active, social outdoor activities were positively associated with both outcomes. Less sedentary participants experienced greater happiness and purpose during all their activities. Context matters: active, social, and outdoor activities seem to be more appealing to older adults.

scholarly journals Exploring feelings of pleasure and purpose associated with older people’s activities using ecological momentary analysis: an observational study

2020 ◽  
Author(s):  
K.E. Hancock ◽  
P. Downward ◽  
L.B. Sherar
Keyword(s):  
Physical Activity ◽  
Ecological Momentary Assessment ◽  
Physical Activity Guidelines ◽  
Outdoor Activities ◽  
Highly Active ◽  
Actigraph Accelerometer ◽  
Confounding Variables ◽  
Ecological Momentary ◽  
Momentary Assessment ◽  
Sedentary Activities

Abstract Momentary feelings of pleasure and purpose can be sources of intrinsic motivation, but momentary purpose is rarely studied. Activities, contexts and feelings of retired/semi-retired adults (n=67, aged 50-78y) were captured using ecological momentary assessment. Participants provided 2,065 valid responses to six daily smartphone surveys for seven days. Physical activity was measured by waist-worn Actigraph accelerometer. Pleasure (measured by affective happiness) and purpose outcomes were regressed on activities, context and potential confounding variables. Interactions between activities and contexts were explored.Participants were highly active: 98.5% met physical activity guidelines. Sedentary activities were negatively associated with sense of purpose, especially when indoors. However, social sedentary activities were positively associated with feelings of happiness. Active, social outdoor activities were positively associated with both outcomes. Less sedentary participants experienced greater happiness and purpose during all their activities. Context matters: active, social and outdoor activities seem to be more appealing to older adults.

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