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Discrimination of Frailty Phenotype by KinectTM-Based Stepping Parameters
Y Osuka1,2, N Takeshima3, N Kojima2
1Department of Frailty Research, Center for Gerontology and Social Science, Research Institute, National Center for Geriatrics and Gerontology, Aichi, Japan.
Background:
Frailty increases the risk of falling, hospitalization, and premature death, necessitating practical early-detection tools.
Objectives:
To examine the discriminative ability of KinectTM-based stepping parameters for identifying frailty phenotype.
Design:
Population-based cross-sectional study.
Setting:
Eighteen neighborhoods near Tokyo Metropolitan Institute for Geriatrics and Gerontology, Itabashi, Tokyo, Japan.
Participants:
In total, 563 community-dwelling older adults aged ≥75 years without mobility limitations, neurological disease, or dementia were included.
Measurements:
Step number (SN) and knee total movement distance (KMD) during a 20-s stepping test were evaluated using the KinectTM infrared depth sensor.
Results:
The number (%) of participants with frailty were 51 (9.1). The area under the receiver operating characteristic curves (95% confidence interval) of a parameter consisting of SN and KMD for frailty was 0.72 (0.64, 0.79).
Conclusions:
Stepping parameters evaluated using KinectTM provided acceptable ability in identifying frailty phenotype, making it a practical screening tool in primary care and home settings.
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