Walking Sensation Study
Somatosensory Feedback to Improve Neural Control of Walking in Older Adults
University of Florida
30 participants
Sep 8, 2025
INTERVENTIONAL
Conditions
Summary
The primary objective of this new line of research is to test whether augmenting sensory information from the legs, using Walkasins sensory neuroprosthesis, can enhance performance of a complex walking task in older adults with foot sensory impairment. The overarching hypothesis is that Walkasins will enhance the automaticity and reduce cognitive demand of walking in older adults with foot sensory impairments, as measured by reduced prefrontal activity, decreased dual-task costs, and lower gait variability.
Eligibility
Exclusion Criteria20
- age 65 - 95.
- no severe high blood pressure (systolic \< 180 mmHg and/or diastolic \< 100 mmHg at rest).
- no severe vision impairment: visual acuity ≥ 20/70 as determined by Snellen eye chart.
- slow walking speed: preferred walking speed slower than 1.0 m/s over 10 meter.
- no cognitive impairment: Montreal Cognitive Assessment (MoCA) score ≥ 26 out of 30 possible points.
- foot sensory impairment: Inability to feel the 10 g monofilament at ≥1 of 10 tested sites on either foot is considered a sign of impaired protective sensation. loss.
- diagnosed neurological disorder or injury of the central nervous system, or observation of symptoms consistent with such a condition (Alzheimer's, Parkinson's, stroke, etc.)
- severe arthritis, such as awaiting joint replacement
- current cardiovascular, lung or renal disease; untreated diabetes; terminal illness
- myocardial infarction or major heart surgery in the previous year
- cancer treatment in the past year, except for nonmelanoma skin cancers and cancers having an excellent prognosis (e.g., early stage breast or prostate cancer)
- current diagnosis of schizophrenia, other psychotic disorders, or bipolar disorder
- currently taking medications that affect the central nervous system, such as benzodiazepines, anti-cholinergic medication, and GABAergic medication, among others
- no severe vision impairment (visual acuity ≥ 20/70 as determined by Snellen eye chart)
- uncontrolled hypertension at rest (systolic \> 180 mmHg and/or diastolic \> 100 mmHg)
- bone fracture or joint replacement in the previous six months
- current enrollment in any other clinical trial
- planning to relocate out of the area during the study period
- non-English\* speaking, due to the likelihood of difficulties following instructions and communicating remotely
- clinical judgment of the investigative team
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Interventions
Walkasins sensory neuroprosthesis provides real-time sensory input by delivering vibrotactile stimuli to the lower limbs above the ankle
Walkasins sensory neuroprosthesis does not provide real-time sensory input by delivering vibrotactile stimuli to the lower limbs above the ankle
Locations(1)
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NCT06975423