University of Florida
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.
Preserving mobility function in older adults is crucial for ensuring safe walking in complex environments, including home and community settings. A common example is navigating a busy street with obstacles like uneven sidewalks and pedestrians, or a home with furniture, stairs, and narrow hallways, all while engaging in a conversation or mental task. Such environments create a potential risk for older adults, who may show declines in function across multiple systems, including sensation, cognition, and mobility. Successfully walking in complex environments depends on cognitive control processe…
Inclusion Criteria: * Not having any significant existing medical conditions, historical health issues, or medications (outlined in the exclusion criteria table above) that could impede the execution of the walking task and assessment. * 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…
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
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