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Cognitive motor interference during dual-task gait in essential tremor
Open accessAbstract
Background Functional ambulation requires concurrent performance of motor and cognitive tasks, which may create interference (degraded performance) in either or both tasks. People with essential tremor (ET) demonstrate impairments in gait and cognitive function. In this study we examined the extent of interference between gait and cognition in people with ET and controls during dual-task gait.Methods We tested 62 controls and 151 ET participants (age range: 72-102). ET participants were divided into two groups based on median score on the modified Mini Mental State Examination. Participants walked at their preferred speed, and performed a verbal fluency task while walking. We analyzed gait velocity, cadence, stride length, double support time, stride time, step width, step time difference, coefficient of variation (CV) of stride time and stride length.Results Verbal fluency performance during gait was similar across groups (p=0.68). Velocity, cadence and stride length were lowest whereas step time difference (p=0.003), double support time (p=0.009), stride time (p=0.002) and stride time CV (p=0.007) were highest for ET participants with lower cognitive scores (ETp-LCS), compared with ET participants with higher cognitive scores (ETp-HCS) and controls. ETp-LCS demonstrated greatest interference for double support time (p=0.005), step time difference (p=0.013) and stride time coefficient of variation (p=0.03).Conclusions ETp-LCS demonstrated high levels of cognitive motor interference. Gait impairments during complex tasks may increase risk for falls for this subgroup and underscore the importance of clinical assessment of gait under simple and dual-task conditions.
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ET plus syndrome may include mild to moderate gait ataxia, cognitive impairment, personality profile changes, and mood disturbances.
“These accompanying neurological signs may include mild to moderate gait ataxia (3, 15–23), cognitive impairment (24, 25) as well as personality profile (26–28), and mood disturbances (29–31).”
From Could Wearable and Mobile Technology Improve the Management of Essential Tremor? (2018) · cites this paper as [21]
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Could Wearable and Mobile Technology Improve the Management of Essential Tremor?
Daneault, J.-F. (2018) · Frontiers in Neurology · doi:10.3389/fneur.2018.00257 · Cited by 21
Metadata
- Authors
- Rao, A. K., Uddin, J., Gillman, A., & Louis, E. D.
- Affiliations
- Columbia University Irving Medical Center (US)
- Columbia University (US)
- Corresponding author
- Rao, Ashwini K.
- Venue
- Gait & Posture
- Publisher
- Elsevier BV
- Published
- 2013-07
- Volume
- 38
- Issue
- 3
- Pages
- 403-409
- ISSN
- 0966-6362 (ISSN-L)
- PMC
- PMC3679258
- OpenAlex
- W2076006672
- Cited by
- 31
- References
- 30
- Citations by year
- 2024: 3 · 2023: 2 · 2022: 2 · 2021: 3 · 2020: 2 · 2019: 2 · 2018: 4 · 2017: 1 · 2016: 1 · 2015: 2 · 2014: 6 · 2013: 3
- FWCI
- 10.40
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Locations
- Gait & Posture (publishedVersion)
- PubMed (publishedVersion)
- Europe PMC (PubMed Central) (acceptedVersion)
- PubMed Central (acceptedVersion)
- Funders
- National Institutes of Health (5k01hd060912-03)
- National Institute of Neurological Disorders and Stroke (R01NS042859)
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (K01-HD060912)
- Topics
- Health Sciences › Health Professions › Physical Therapy, Sports Therapy and Rehabilitation › Balance, Gait, and Falls Prevention
- Life Sciences › Neuroscience › Cognitive Neuroscience › Motor Control and Adaptation
- Health Sciences › Medicine › Clinical Neurology › Deep Brain Stimulation and Movement Disorders
- Keywords
- essential tremor, dual-task walking, cognitive-motor interference, verbal fluency, gait variability, double support time, cognitive impairment, fall risk, older adults
- MeSH terms
- Aged, Aged, 80 and over, Attention, Cognition, Cognition Disorders, Female, Gait, Humans, Male, Neuropsychological Tests, Psychomotor Performance, Case-Control Studies, Gait Disorders, Neurologic, Essential Tremor
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