Acceptability, Reliability, and Validity of Virtually Administered Gait Speed Tests.

Area of Science:

• Gerontology
• Rehabilitation Medicine
• Telehealth

Background:

• Assessing mobility in community-dwelling older adults is crucial for health management.
• Traditional gait speed tests require in-person administration, posing challenges in telehealth contexts.
• Virtual assessments offer a potential solution for remote and accessible mobility evaluation.

Purpose of the Study:

• To evaluate the acceptability, reliability, and validity of virtually administered 3-meter gait speed tests.
• To determine if virtual gait speed tests can predict future health outcomes in older adults.

Main Methods:

• A prospective cohort study involving community-dwelling older adults assessed via Zoom.
• 3-meter gait speed tests (usual and fast pace) administered twice for reliability.
• Questionnaires assessed telehealth usability; self-report mobility measures and 1-year health outcomes evaluated validity.

Main Results:

• High acceptability reported by participants.
• Reliability (intraclass correlation coefficients) ranged from 0.79 to 0.90.
• Virtual gait speed correlated with self-report mobility and predicted healthcare utilization (doctor visits, rehabilitation).

Conclusions:

• Virtually administered 3-meter gait speed tests are acceptable, reliable, and valid for older adults.
• These telehealth-based mobility assessments provide trustworthy data for clinical and research use.
• Further validation in diverse populations is recommended for broader generalizability.