Walking is such a routine action that we rarely think about it until it starts to change. As we age, gait in older adults undergoes progressive modifications that are not always visible at first glance. These changes are often interpreted as a “normal” part of ageing, but research shows they can be early signs of frailty and declining independence.
The major difference today is that we can measure these changes objectively, thanks to modern gait analysis and motion capture systems, even outside a laboratory environment. This makes it possible to detect risk patterns before falls occur, or functional decline becomes significant.
Why gait analysis matters in ageing
Throughout the ageing process, both the musculoskeletal system and neuromotor control experience gradual adjustments. Loss of lower-limb strength, reduced joint mobility and changes in balance directly affect how a person walks. While these changes may not cause pain, they can increase the likelihood of falls or future dependency.
One of the main reasons why gait assessment in older adults is so relevant is that gait reflects overall health status. In recent years, it has increasingly been considered a vital sign, comparable to blood pressure or heart rate. The goal is not only to observe how someone walks, but to quantify subtle variations that may be clinically meaningful.
Some of the main factors influencing gait changes with ageing include:
- Decreased strength and power in the hip and knee
- Changes in proprioception and dynamic stability
- Reduced ability to perform dual-task motor-cognitive activities
Together, these elements explain many of the changes described below.
Key gait metrics in older adults
Although dozens of biomechanical parameters exist, only a few have proven especially valuable for evaluating functional ageing.
Gait speed: the metric that says it all
Gait speed in older adults is one of the strongest predictors of health outcomes. From around the age of 60, it tends to decline gradually. When gait speed drops below 0.8 m/s, the risk of frailty, falls and recurrent hospitalisation increases substantially.
Small reductions can appear months before functional deterioration becomes visible, which is why gait speed is increasingly used not only for evaluation but for early prevention.
Stride length and double support time
With ageing, steps tend to become shorter and more cautious. An increase in double support time, to the moment when both feet are on the ground, represents a natural strategy to enhance stability. When these modifications are more pronounced, they are often linked to reduced hip and knee power or difficulty maintaining balance in more challenging situations, such as turning or walking on uneven surfaces.
Variability and symmetry: the invisible indicators
An older adult may appear to walk normally while presenting high gait variability, meaning fluctuations from one step to the next. This pattern is associated with subtle neurological changes and increased fall risk. Gait asymmetry also becomes more common with age, particularly after hip or knee arthroplasty or when unilateral pain is present.
These metrics cannot be detected through traditional visual observation, highlighting the value of quantitative analysis.
How to measure gait without a laboratory
For many years, a 3D gait analysis was only possible in specialised laboratories equipped with optoelectronic cameras and force plates. However, technology has advanced to the point where reliable evaluations can now be performed in almost any clinical environment.
Today, gait can be analysed in just a few minutes using portable motion capture systems based on inertial sensors (IMUs) or 3D mocap solutions. These tools provide spatiotemporal and kinematic measurements with automated reports, reducing processing time and simplifying interpretation.
Discover our gait analysis solutions for older adults, designed to provide objective measurements and longitudinal tracking in real-world clinical settings.
Thanks to this accessibility, gait assessment is no longer limited to hospitals and can be integrated into residential care homes, day centres and outpatient clinics even when patient mobility is limited.
Practical applications in geriatric care
Biomechanical gait analysis in older adults offers concrete benefits in daily practice. It not only identifies issues but supports clinical decision-making based on objective data.
Some of the most relevant applications include:
- Fall prevention through early identification of instability
- Monitoring recovery after hip or knee replacement without relying on subjective observation
- Evaluating the impact of therapeutic exercise programmes
- Tracking frailty and functional ageing over time
Many clinicians highlight improved communication with families and care teams, thanks to visual and comparative reporting.
The Value of Longitudinal Monitoring
While a single measurement is useful, the true value emerges when gait is assessed periodically. Tracking changes over time helps detect subtle deterioration before a fall occurs, determine whether a treatment is effective, and decide when an intervention should be modified.
In geriatric settings, changes are often gradual but meaningful. Having comparable data over time becomes essential, especially when tools generate automated reports that streamline workflows in high-volume environments.
Gait changes with age, but today we have tools capable of measuring those changes accurately and in everyday environments. Integrating gait analysis with motion capture into geriatric care enables clinicians to anticipate frailty, improve treatment planning and support independence and quality of life in older adults.
A healthy walk, a step towards health.