This cross-sectional, comparative study aims to examine the intra-rater reliability, validity, and feasibility of tele-assessment versions of three functional mobility tests-the Timed Up and Go (TUG), 30-second Sit-to-Stand (30sSTS), and Gait Speed Test (GST)-in community-dwelling older adults (≥65 years). To provide a comparative perspective, the same assessments will also be administered to a younger, healthy control group (18-44 years). The study seeks to determine whether tele-assessment can serve as a robust and practical alternative to in-person testing, thereby enhancing accessibility and ensuring high-quality functional evaluation in geriatric populations.

• Inclusion Criteria (Older Adults, ≥65 years) Community-dwelling Independent in activities of daily living Able to provide informed consent Capable of performing TUG, 30sSTS, and GST without assistance
• Inclusion Criteria (Younger Adults, 18-44 years) Healthy individuals without acute or chronic conditions affecting mobility Able to provide informed consent Capable of performing TUG, 30sSTS, and GST independently
• Exclusion Criteria (both groups) Diagnosed neurological disorders (other than age-related decline) Uncontrolled cardiovascular or metabolic disease Recent surgery or fractures Severe cognitive impairment Contraindications to physical activity Lack of access to required telecommunication technology

Healthy Older Adults and Younger Adults (as control)