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Remote physical function testing in older adults: a mixed methods study exploring test reliability, feasibility, and
Jackson J Fyfe1, Fernando Sousa2, Kimberley Watson-Mackie3
1Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, Australia.
Plos One
|September 19, 2025
Summary
Remote physical function tests are feasible for older adults, with reliability improving after practice. Home-based assessments can be enhanced by addressing technical challenges and leveraging support systems for successful implementation.
Area of Science:
- Gerontology
- Rehabilitation Science
- Digital Health
Background:
- Impaired physical function in older adults correlates with adverse health outcomes.
- Remote monitoring offers a low-cost solution for timely interventions and reduced support needs.
- Assessing physical function remotely at home requires evaluation for feasibility, reliability, and user acceptance.
Purpose of the Study:
- To determine the feasibility and reliability of remote physical function assessments in community-dwelling older adults.
- To explore participant and assessor perceptions of at-home remote physical function testing.
- To identify factors influencing the successful implementation of remote physical function monitoring.
Main Methods:
- Nineteen older adults completed nine physical function tests via three weekly videoconferencing sessions.
- Tests included balance, gait speed, and sit-to-stand assessments.
- Feasibility, reliability (ICC, Bland-Altman plots), and user perceptions (interviews) were evaluated.
Main Results:
- Remote assessments were completed safely by all participants without adverse events.
- Test-retest reliability varied from poor (single-leg balance) to good (5-STS, 30-STS, gait, FSST), improving with familiarization.
- Participant-reported challenges included device setup and physical demands; assessor-noted barriers included participant understanding.
Conclusions:
- Remote physical function testing is a safe and feasible option for older adults in their homes.
- Repeated testing enhances reliability, while minimizing technical and physical demands is crucial for implementation.
- Support from others at home is a key factor for successful remote testing and intervention.
