Motor Imagery Deficits in High-Functioning Older Adults and Its Impact on Fear of Falling and Falls
Autor: | Susumu Ogawa, Manuel Montero-Odasso, Hiroyuki Suzuki, Yoshinori Fujiwara, Ryota Sakurai |
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Rok vydání: | 2021 |
Předmět: |
Aging
medicine.medical_specialty Motor planning business.industry Fear Timed Up and Go test Logistic regression High functioning Fear of falling Physical medicine and rehabilitation Motor imagery Cohort Humans Medicine Accidental Falls Independent Living Prospective Studies Geriatrics and Gerontology medicine.symptom business Baseline (configuration management) Gait Aged |
Zdroj: | The Journals of Gerontology: Series A. 76:e228-e234 |
ISSN: | 1758-535X 1079-5006 |
Popis: | BackgroundOlder adults at risk of falling or who have fear of falling (FoF) present a discrepancy between “imagined” and “performed” actions. Using the gait-related motor imagery paradigm, we investigated whether prediction accuracy in motor execution is associated with the onset of FoF and with prospective falls among older adults with FoF.MethodsA cohort of 184 community-dwelling older adults was tested for imaginary and executed Timed Up and Go (TUG) tests at a fast pace at baseline. They were first asked to imagine performing TUG and estimate the time taken to complete it (iTUG) and then to perform the actual trial (aTUG); the difference between the 2 times was calculated. Prospective falls were monitored between baseline and 2-year follow-up of FoF assessment.ResultsAt follow-up, 27 of 85 participants without FoF at baseline (31.8%) had developed FoF. Twenty-seven of 99 participants (27.2%) with FoF at baseline experienced falls. A significantly shorter iTUG duration, when compared with aTUG, was observed in those who developed FoF or experienced multiple prospective falls, indicating overestimation of their TUG performance. The adjusted logistic regression model showed that a greater ΔTUG (ie, tendency to overestimate) at baseline was associated with an increased risk of new-onset FoF among those without FoF at baseline and multiple prospective falls among those with FoF at baseline.ConclusionsDeficits in motor imagery (ie, overestimation of physical capabilities), reflecting impairment in motor planning, could provide an additional explanation of the high risk of FoF and recurrent falls among people with FoF. |
Databáze: | OpenAIRE |
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