What is the primary purpose of gait speed measurement in PT?

• A. Indicator of functional status and predictor of outcomes.
• B. Sole measure of cardiovascular fitness.
• C. Only to assess pace on treadmill.
• D. Unrelated to mobility.

Answer: (C)

Gait speed serves as a quick, informative measure of a person’s functional status and a predictor of future outcomes. It reflects the integrated function of several systems—cardiopulmonary capacity, muscle strength and power, neuromotor control, balance, and endurance—since all must work together to walk at a steady pace. In practice, gait speed is typically measured over a short distance (often 4 meters) at a comfortable pace and reported in meters per second. Clinically, slower speeds are linked with greater risk for falls, hospitalization, reliance on assistance or institutional care, and even higher mortality risk, making it a sensitive indicator of overall health and functional reserve. Because the test is quick, inexpensive, and responsive to change, it guides goal setting, tracks progress, and informs discharge planning. It is not a measure of cardiovascular fitness, not solely about treadmill pace, and it is clearly related to mobility.