Functional studies in 79-year-olds. III. Walking performance and climbing capacity

Area of Science:

• Gerontology
• Biomechanics
• Public Health

Background:

• Assessing the functional capacity of lower extremities in older adults is crucial for mobility and independence.
• Established mobility norms, such as pedestrian speeds at signalized intersections, may not reflect the capabilities of the elderly population.

Purpose of the Study:

• To evaluate the functional capacity of lower extremities in 70-year-old individuals by examining walking speed and step-climbing ability.
• To compare the functional capacity of older men and women regarding mobility tasks.
• To identify potential discrepancies between older adults' functional capacity and urban infrastructure design.

Main Methods:

• A subsample of 112 women and 93 men from the
• 70-year-old people in Göteborg
• longitudinal population study participated.
• Walking speed was measured at comfortable and maximum paces.
• Step-climbing ability was assessed using 20 cm and 50 cm steps, with and without handrail assistance.

Main Results:

• No participants achieved the recommended comfortable walking speed of 1.4 m/s.
• At maximum speed, only 32% of women and 72% of men reached 1.4 m/s.
• While all could manage a 20 cm step, less than half of women and nearly all men could ascend a 50 cm step with a handrail.
• Individuals using handicap transport services exhibited significantly lower walking speeds.
• Correlations were observed between step-climbing performance and walking speed.

Conclusions:

• The functional capacity of 70-year-old individuals, particularly concerning walking speed and step-climbing, is often insufficient to meet current urban mobility standards.
• Traffic infrastructure and signalized intersection timings may pose challenges for older pedestrians, potentially compromising their safety and independence.
• Further research is needed to align urban planning and traffic management with the physical capabilities of an aging population.