Ann Geriatr Med Res 2017; 21(3): 108-114  http://dx.doi.org/10.4235/agmr.2017.21.3.108
Association Between Computerized Reaction Time, Short Physical Performance Battery and Berg Balance Scale in the Community-Dwelling Older Adults
Boram Kim1, Chang Won Won1, Jin-Young Min2, Sunyoung Kim3, Miji Kim4, Byung-Sung Kim1, Hyunrim Choi1, Joosun Hong1
1Department of Family Medicine, College of Medicine, Kyung Hee University, Seoul, 2Institute of Health and Environment, Seoul National University, Seoul, 3Department of Medicine, Graduate School, Kyung Hee University, Seoul, 4College of Medicine/East-West Medical Research Institute, Kyung Hee University, Seoul, Korea
Correspondence to: Chang Won Won, MD, PhD
Department of Family Medicine, Kyung Hee University Medical Center, 23 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Korea
Tel: +82-2-958-8697 Fax:+82-2-958-8699 E-mail: chunwon62@naver.com
Received: August 28, 2017; Revised: September 12, 2017; Accepted: September 13, 2017; Published online: September 30, 2017.
© The Korea Geriatrics Society. All rights reserved.

This is an open access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
Background: Falls, in older adults, can worsen physical functioning and lead to serious complications. Thus, as a means of preventive intervention, this high-risk group should be screened. The aim of the present study was to investigate whether reaction time is clinically applicable as a fall risk assessment tool. Methods: The study participants were community-dwelling older adults aged 65 years or older, who scored 24 or more in the Korean version of the Mini-Mental State Examination, and did not have difficulty with communication and comprehension. To investigate the relationship between hand reaction time and fall risk, we used items from a recently developed computerized apparatus, which includes 2 fall risk assessment tools: the Short Physical Performance Battery (SPPB) and Berg Balance Scale (BBS). Results: Reaction time was negatively correlated with the total SPPB (r=-0.314, p<0.001) and BBS scores (r=-0.164, p<0.001); the scores were higher when reaction times were lower. Multiple linear regression analyses also showed that the total SPPB (β=-0.30; 95% confidence interval [CI], -0.26 to -0.02) and BBS scores (β=-0.14; 95% CI, -0.26 to -0.02) significantly increased as the reaction time decreased. Conclusion: Reaction time was significantly correlated with the SPPB and BBS, confirming the possibility of its use in tools for fall risk assessment.
Keywords: Accidental falls, Reaction time, Physical activity, Prevention


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