Scientists reveal why walking gets so much harder with age
Researchers have discovered that older adults adopt a 'safety-first' walking strategy that prioritizes stability over energy efficiency. This involves stiffening ankle joints through muscle co-contraction, which helps prevent falls but leads to faster fatigue and slower walking speeds.
Why it matters
Understanding these biomechanical changes can help physical therapists develop better interventions to improve mobility and reduce fall risks in the aging population.
New Australian research is shedding light on why walking often becomes slower and more tiring with age. The findings suggest that the body gradually gives up some movement efficiency in favor of staying stable and upright.
Led by researchers at Flinders University and the University of Canberra, the study found that aging is associated with a "safety-first" walking strategy. This approach emphasizes stability instead of speed and energy efficiency, helping explain why older adults may fatigue more quickly and also face a greater risk of falling.
Researchers analyzed movement data from 107 healthy adults between the ages of 26 and 86. They found small but meaningful age-related differences in how the ankle and nearby muscles manage each step.
Lead author and sport and exercise technology expert Dr. Cody Lindsay says the ankle is essential for maintaining balance while also helping propel the body forward.
Get smarter about the news
Sign up free for a feed built around what you actually care about, Dive Deeper research on any story, and the full text of every article.
Create free accountAlready have an account? Sign in