Researchers from Flinders University and the University of Canberra have uncovered why walking slows and tires the body more as people grow older. The study shows that a focus on stability over efficiency changes how the ankle and surrounding muscles work, helping prevent falls but also making walking more effortful.
- Aging promotes ankle stiffness to improve stability during walking.
- This safety-focused shift reduces stride length and walking speed.
- Balance and coordination exercises can help preserve mobility.
What happened
A team led by Dr. Cody Lindsay studied the walking patterns of 107 healthy adults aged 26 to 86 to understand how aging affects movement. They discovered that as people age, their bodies adopt a ‘safety-first’ walking style that emphasizes stability over efficiency. This change is marked by increased co-contraction of opposing ankle muscles, which stiffens the joint to reduce the risk of falls.
While this adaptation aids balance, it comes at a cost: the muscles exert more effort but generate less forward propulsion. Consequently, older adults take shorter strides and walk at slower speeds. These findings highlight how subtle shifts in muscle coordination during each step contribute to greater fatigue and challenges in walking longer distances.
Why it feels good
The body’s strategy to enhance ankle stability acts like a built-in fall-prevention mechanism. By stiffening the ankle joint through muscle co-contraction, the body helps maintain upright posture on potentially uneven or unpredictable surfaces. This evolutionary approach boosts confidence when moving, especially for older individuals at higher risk of falls.
Understanding that this shift is purposeful offers reassurance that these age-related changes are not simply limitations but protective adaptations. Recognizing this helps foster appreciation for the body’s resilience, encouraging gentle self-care and patience during movements that may require a little extra effort.
What to enjoy or watch next
To support healthy aging and mobility, consider exercises beyond strength training—focusing on balance and coordination can yield big benefits. Activities such as tai chi, lower-leg strengthening routines, and balance challenges can enhance muscle coordination and maintain walking confidence.
Staying physically active with consistent, manageable exercises helps reduce fatigue and supports independence. Keep an eye out for community programs or online classes that offer guided balance and coordination training tailored for older adults, helping you stay steady and safe in everyday movement.