Manabe Tomoki, Oguma Yuko, Tabira Kento, Sugimoto Miki, Negishi Kazuno, Yagasaki Kaori
Graduate School of Health Management, Keio University, Kanagawa, Japan.
Sports Medicine Research Center, Keio University, 4-1-1 Hiyoshi, Kohoku-ku, Yokohama, 223-0061, Kanagawa, Japan.
BMC Geriatr. 2025 Jun 4;25(1):405. doi: 10.1186/s12877-025-06074-6.
As the Japanese population continues to age, functional decline with aging will inevitably become more pronounced. Vision loss and decline in lifestyle and motor functions are the main causes of functional decline. To date, a few studies have examined the relationship between visual and overall physical function. Therefore, this study aimed to quantitatively investigate the relationship between loss of visual acuity and the decline of physical functionality.
This cross-sectional study was based on the data of 86 community-dwelling older adults (average age ± standard deviation, 75.7 ± 5.5 years; 34 men) who participated in the October 2020–May 2022 baseline survey. Visual function was assessed based on the measurement of binocular near functional visual acuity (NFVA) using the Smart Vision Check application. Physical function tests were performed by measuring grip strength, 30-second chair stand (CS-30), Timed Up and Go (TUG), with eyes open, one-leg standing balance (OLSB), and two-step test. Multivariate regression analysis was performed to examine the association between NFVA and physical function, and partial regression coefficient (β) and 95% confidence interval (95%CI) were calculated.
After adjusting for all covariates, NFVA was significantly associated with grip strength (β: 3.54, 95%CI: 0.39, 6.70). Meanwhile, no association was noted between NFVA and CS-30 (β: -0.35, 95%CI: -2.68, 1.97), TUG (β: -0.23, 95%CI: -0.65, 0.19), OLSB (β: 6.13, 95%CI: -5.09, 17.35), and two-step test (β: 0.01, 95%CI: -0.05, 0.08).
The study showed an association between quantitatively assessed visual and physical functions in community-dwelling older adults living in Japan. Thus, the findings indicate that maintaining and enhancing grip strength and visual function in older adults may be an important factor in leading a healthy and fulfilling life.
Registration number, UMIN000041970.
随着日本人口持续老龄化，衰老导致的功能衰退将不可避免地愈发明显。视力丧失以及生活方式和运动功能下降是功能衰退的主要原因。迄今为止，仅有少数研究探讨了视觉功能与整体身体功能之间的关系。因此，本研究旨在定量调查视力丧失与身体功能衰退之间的关系。
本横断面研究基于86名社区居住老年人（平均年龄±标准差，75.7±5.5岁；34名男性）的数据，这些老年人参与了2020年10月至2022年5月的基线调查。使用Smart Vision Check应用程序通过测量双眼近功能视力（NFVA）来评估视觉功能。通过测量握力、30秒椅子起立测试（CS-30）、计时起立行走测试（TUG）、睁眼单腿站立平衡测试（OLSB）和两步测试来进行身体功能测试。进行多变量回归分析以检验NFVA与身体功能之间的关联，并计算偏回归系数（β）和95%置信区间（95%CI）。
在对所有协变量进行调整后，NFVA与握力显著相关（β：3.54，95%CI：0.39，6.70）。同时，未发现NFVA与CS-30（β：-0.35，95%CI：-2.68，1.97）、TUG（β：-0.23，95%CI：-0.65，0.19）、OLSB（β：6.13，95%CI：-5.09，17.35）和两步测试（β：0.01，95%CI：-0.05，0.08）之间存在关联。
该研究表明，在居住于日本社区的老年人中，定量评估的视觉功能与身体功能之间存在关联。因此，研究结果表明，维持和增强老年人的握力和视觉功能可能是过上健康充实生活的重要因素。
注册号，UMIN000041970。
