Ecological Momentary Assessment of Physical Activity and Health Behavior

Ecological Momentary Assessment (EMA) is a methodological approach that captures self‐reported and sensor‐derived data on physical activity, sedentary patterns and related health behaviours in real time and in natural settings. By prompting individuals at multiple occasions across the day, EMA minimises recall bias and enables the study of microtemporal fluctuations in movement behaviours, affective states, cognitive determinants and contextual factors. Advances in mobile technologies and wearable sensors have facilitated seamless integration of electronic EMA (eEMA) with objective measures such as accelerometry, providing rich multilayered datasets. Applications range from descriptive studies of daily activity rhythms to tailored, context‐sensitive interventions that deliver support at the moments of greatest need. Despite these opportunities, challenges remain in achieving high compliance, standardising reporting protocols and ensuring representativeness across diverse populations. Continued innovation and rigorous methodological standards are essential to unlock the full potential of EMA for understanding and promoting healthy movement behaviours worldwide.

Research from Nature Portfolio

No recent Nature Portfolio content available.

Ecological Momentary Assessment of Physical Activity and Health Behavior publication trend

The graph below shows the total number of articles in ecological momentary assessment of physical activity and health behavior across all publications each year (not limited to Nature Index journals).

Technical terms

Ecological Momentary Assessment (EMA): A method of repeatedly sampling individuals’ behaviours, experiences and contexts in real time within their natural environments.

Electronic EMA (eEMA): EMA delivered via digital devices such as smartphones, often integrating self‐report prompts with sensors or wearables.

Moderate-to-vigorous physical activity (MVPA): Any physical activity that elevates heart rate and energy expenditure to levels defined as moderate or vigorous intensity.

Microtimescales: Temporal windows of hours or days, capturing short-term fluctuations in behaviour and psychological states.

Self-efficacy: An individual’s belief in their capacity to perform specific behaviours under various circumstances.

Intentions: Plans or commitments to engage in a particular behaviour within a defined timeframe.

References

1. Use of Electronic Ecological Momentary Assessment Methodologies in Physical Activity, Sedentary Behavior, and Sleep Research in Young Adults: Systematic Review. Journal of Medical Internet Research (2023).
2. Associations Between Social Cognitive Determinants and Movement-Related Behaviors in Studies Using Ecological Momentary Assessment Methods: Systematic Review. JMIR mHealth and uHealth (2023).
3. Use of a Single-Item Ecological Momentary Assessment to Measure Daily Exercise: Agreement with Accelerometer-Measured Exercise. Sensors (2024).