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Walking stability and sensorimotor function in older people with diabetic peripheral neuropathy
Hylton B Menz1, Stephen R Lord, Rebecca St George
1Prince of Wales Medical Research Institute, University of New South Wales, Randwick, New South Wales, Australia.
Archives of Physical Medicine and Rehabilitation
|February 18, 2004
Summary
Older adults with diabetic peripheral neuropathy (DPN) show less stable walking patterns, especially on uneven surfaces. This sensory loss impacts gait control and increases fall risk.
Area of Science:
- Biomechanics
- Neurology
- Gerontology
Background:
- Diabetic peripheral neuropathy (DPN) affects older adults, potentially impairing walking stability.
- Lower-limb sensory loss is a key characteristic of DPN.
Purpose of the Study:
- To investigate head and pelvis acceleration patterns during walking in older adults with DPN compared to controls.
- To determine the impact of sensory loss on gait stability in this population.
Main Methods:
- A case-control study involving 30 older adults with DPN and 30 age-matched controls.
- Measurement of head and pelvis acceleration during walking on level and irregular surfaces.
- Assessment of vision, sensation, strength, reaction time, and balance.
Main Results:
- Participants with DPN exhibited reduced walking speed, cadence, and step length.
- Less rhythmic head and pelvis acceleration patterns were observed in individuals with DPN, particularly on irregular surfaces.
- Impaired peripheral sensation, reaction time, and balance were noted in the DPN group.
Conclusions:
- Older adults with DPN have compromised gait stability on irregular surfaces, despite conservative gait adjustments.
- Peripheral sensory input is crucial for maintaining gait stability.
- Findings suggest mechanisms contributing to the elevated fall risk in older individuals with diabetic neuropathy.