@article{ref1,
title="Reliability, validity, and identification ability of a commercialized waist-attached inertial measurement unit (IMU) sensor-based system in fall risk assessment of older people",
journal="Biosensors (Basel)",
year="2023",
author="Lam, Freddy Man-Hin and Law, Man-Ching and Wong, Nicky Lok-Yi and Li, Ke-Jing and Zheng, Yong-Ping and Wong, Kit-Naam and Chan, Tsz-On and Wong, Hoi-Ching and Ma, Christina Zong-Hao and Kwok, Timothy Chi-Yui and Wong, Arnold Yu-Lok and Huang, Qi-Yao",
volume="13",
number="12",
pages="-",
abstract="Falls are a prevalent cause of injury among older people. While some wearable inertial measurement unit (IMU) sensor-based systems have been widely investigated for fall risk assessment, their reliability, validity, and identification ability in community-dwelling older people remain unclear. Therefore, this study evaluated the performance of a commercially available IMU sensor-based fall risk assessment system among 20 community-dwelling older recurrent fallers (with a history of ≥2 falls in the past 12 months) and 20 community-dwelling older non-fallers (no history of falls in the past 12 months), together with applying the clinical scale of the Mini-Balance Evaluation Systems Test (Mini-BESTest). The results show that the IMU sensor-based system exhibited a significant moderate to excellent test-retest reliability (ICC = 0.838, p < 0.001), an acceptable level of internal consistency reliability (Spearman's rho = 0.471, p = 0.002), an acceptable convergent validity (Cronbach's α = 0.712), and an area under the curve (AUC) value of 0.590 for the IMU sensor-based receiver-operating characteristic (ROC) curve. The findings suggest that while the evaluated IMU sensor-based system exhibited good reliability and acceptable validity, it might not be able to fully identify the recurrent fallers and non-fallers in a community-dwelling older population. Further system optimization is still needed.<p /> <p>Language: en</p>",
language="en",
issn="2079-6374",
doi="10.3390/bios13120998",
url="http://dx.doi.org/10.3390/bios13120998"
}