ArticleDigital health
Exploring reactivity to EMA and consumer-grade wearable measurement of physical activity among individuals with binge-eating spectrum disorders.
Article in Digital health. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Objective: Advances in wearable technology offer new opportunities to comprehensively and objectively measure exercise in eating disorder (ED) samples; however, concerns persist that consumer-grade wearables may increase ED symptoms. To date, no studies have explicitly reported on reactivity to sensor-based activity assessment in binge-spectrum ED samples, limiting information on potential risks in this population. Method: Adults with binge-spectrum EDs (N=30; 43.3% male) completed the Eating Disorder Examination (EDE) Interview and 28 days of 6-daily ecological momentary assessments (EMA) while wearing a consumer-grade activity tracker. We compared EMA-reported symptoms to EDE report and examined short-term variability (within-week) and long-term change (over 28 days) in physical activity (PA; steps, moderate-vigorous PA [MVPA], total PA) and ED symptoms (loss-of-control [LOC] eating, dietary restraint, body dissatisfaction, maladaptive exercise episodes). All models covaried for sex, BMI, and EMA compliance. Results: Across the EMA period, participants reported fewer maladaptive exercise episodes (M Conclusion: Findings suggest limited reactivity to wearable monitoring in binge-spectrum EDs. Decreases in some ED symptoms may reflect increased awareness, behavior change, or over-reporting at baseline. Minimal changes in ED symptoms and PA support feasibility of wearables in binge-spectrum ED research, with low risk of harm.
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