Chang Milan, Geirsdottir Olof G, Launer Lenore J, Gudnasson Vilmundur, Visser Marjolein, Gunnarsdottir Ingibjorg
The Icelandic Gerontological Research Center, Landspitali University Hospital and University of Iceland, Reykjavík, Iceland.
Sport Science, School of Science and Engineering, Reykjavik University, Reykjavík, Iceland.
Eur J Ageing. 2020 Nov 6;18(3):405-415. doi: 10.1007/s10433-020-00588-1. eCollection 2021 Sep.
A poor appetite or ability to eat and its association with physical function have not been explored considerably amongst community-dwelling older adults. The current study examined whether having an illness or physical condition affecting one's appetite or ability to eat is associated with body composition, muscle strength, or physical function amongst community-dwelling older adults. This is a secondary analysis of cross-sectional data from the age, gene/environment susceptibility-Reykjavik study ( = 5764). Illnesses or physical conditions affecting one's appetite or ability to eat, activities of daily living, current level of physical activity, and smoking habits were assessed with a questionnaire. Fat mass, fat-free mass, body mass index, knee extension strength, and grip strength were measured, and the 6-m walk test and timed up-and-go test were administered. Individuals who reported illnesses or physical conditions affecting their appetite or ability to eat were considered to have a poor appetite. The associations of appetite or the ability to eat with body composition and physical function were analysed with stepwise linear regression models. A total of 804 (14%) individuals reported having conditions affecting their appetite or ability to eat and had a significantly lower fat-free mass and body mass index, less grip strength, and poorer physical function than did those without any conditions affecting their appetite or ability to eat. Although the factors reported to affect one's appetite or ability to eat are seldom considered severe, their strong associations with physical function suggest that any condition affecting one's appetite or ability to eat requires attention.
在社区居住的老年人中，食欲不振或进食能力及其与身体功能的关联尚未得到充分研究。本研究调查了患有影响食欲或进食能力的疾病或身体状况，是否与社区居住老年人的身体成分、肌肉力量或身体功能有关。这是对年龄、基因/环境易感性-雷克雅未克研究（n = 5764）的横断面数据进行的二次分析。通过问卷调查评估影响食欲或进食能力的疾病或身体状况、日常生活活动、当前身体活动水平和吸烟习惯。测量脂肪量、去脂体重、体重指数、膝关节伸展力量和握力，并进行6米步行测试和定时起立行走测试。报告患有影响食欲或进食能力的疾病或身体状况的个体被认为食欲不振。采用逐步线性回归模型分析食欲或进食能力与身体成分和身体功能的关联。共有804名（14%）个体报告患有影响食欲或进食能力的疾病或身体状况，与没有任何影响食欲或进食能力疾病或身体状况的个体相比，他们的去脂体重和体重指数显著更低，握力更小，身体功能更差。尽管据报告影响食欲或进食能力的因素很少被认为是严重的，但它们与身体功能的密切关联表明，任何影响食欲或进食能力的状况都需要引起关注。
