Development and Validation of Person-Centered Cut-Points for the Figure-of-8-Walk Test of Mobility in Community-Dwelling Older Adults
| Autor: | Subashan Perera, Valerie Shuman, Jennifer S. Brach, Peter C. Coyle, Jessie M. VanSwearingen |
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| Rok vydání: | 2020 |
| Předmět: |
Male
Aging medicine.medical_specialty Psychometrics THE JOURNAL OF GERONTOLOGY: Medical Sciences Poison control Walk Test 03 medical and health sciences 0302 clinical medicine Physical medicine and rehabilitation Injury prevention medicine Humans 030212 general & internal medicine Geriatric Assessment Motor skill Aged Balance (ability) Aged 80 and over Receiver operating characteristic business.industry Emergency department Test (assessment) Preferred walking speed Motor Skills Female Independent Living Geriatrics and Gerontology business 030217 neurology & neurosurgery |
| Zdroj: | J Gerontol A Biol Sci Med Sci |
| ISSN: | 1758-535X 1079-5006 |
| DOI: | 10.1093/gerona/glaa035 |
| Popis: | Background The Figure-of-8-Walk test (F8WT) is a performance measure of the motor skill of walking. Unlike walking speed over a straight path, it captures curved path walking, which is essential to real-world activity, but meaningful cut-points have yet to be developed for the F8WT. Methods A secondary analysis of 421 community-dwelling older adults (mean age 80.7 ± 7.8), who participated in a community-based exercise clinical trial, was performed. Area under receiver operating characteristic curves (AUROCC) were calculated using baseline data, with F8WT performance discriminating different self-reported global mobility and balance dichotomies. Cut-points for the F8WT were chosen to optimize sensitivity and specificity. For validation, F8WT cut-points were applied to postintervention F8WT data. Participants were called monthly for 12 months after intervention completion to record self-reported incident falls, emergency department visits, and hospitalizations; risks of the outcomes were compared between those who performed well and poorly on the F8WT. Results F8WT performance times of ≤9.09 seconds and ≤9.27 seconds can discriminate those with excellent (sensitivity = 0.647; specificity = 0.654) and excellent/very good global mobility (sensitivity = 0.649; specificity = 0.648), respectively. A total number of steps ≤17 on the F8WT can discriminate those with excellent/very good/good global balance (sensitivity = 0.646; specificity = 0.608). Compared to those who performed poorly, those who performed well had a lower incidence of negative outcomes: F8WT time ≤9.09 seconds = 46%–59% lower; F8WT time ≤9.27 seconds = 46%–56% lower; F8WT steps ≤17 = 44%–50% lower. Conclusions Clinicians may consider these preliminary cut-points to aid in their clinical decision making, but further study is needed for definitive recommendations. |
| Databáze: | OpenAIRE |
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