Preventive behaviour and health status among the elderly

Abstract

The research describes the range of preventive health behaviours undertaken by the elderly, investigates the dimensionality of preventive health behaviour, and explores the relationship between preventive health behaviour, self-assessed and medically assessed health status. Previous research has relied mainly on self-reports of health status. Data from medical examinations and interviews with 115 elderly individuals (aged 65–75) indicated that most elderly persons performed some intentional preventive health practices, as well as a broad range of normative preventive health practices. Particular clusters of preventive health behaviour emerged when the data were subjected to cluster analysis. A short index consisting of five personal preventive health behaviours found in other studies to have a protective effect on long-term health was found to have a low to moderate correlation with the medical and self-assessments of health status employed in the study. These findings indicate particular types of preventive health behaviour of importance for health promotion programmes with the elderly.     

Are Older Adults More Dependent on Visual Information in Regulating Self-Motion Than Younger Adults?

Older adults look at the ground more while they are walking than younger adults do. In the present study, the effect of blocking that exproprioceptive visual information on the walking pattern of older adults was investigated. The first 0.75 m of the floor in front of healthy young adults (n = 10, mean age = 26.0 years) and 2 groups of older adults (n = 10, mean age 65.7 years; and n = 9, mean age = 75.9 years) was occluded. The dependent variables were step velocity, step length, and step frequency. The effect of the manipulation on those kinematic variables increased with age. The older adults had a significant increase in velocity and step length. The possible use of optic flow information from the ground to regulate the velocity of self-motion is discussed.     

Undisturbed Upright Stance Control in the Elderly: Part 2. Postural-Control Impairments of Elderly Fallers

A common way of predicting falling risks in elderly people can be to study center of pressure (CP) trajectories during undisturbed upright stance maintenance. By estimating the difference between CP and center of gravity (CG) motions (CP - CG_v), one can estimate the neuromuscular activity. The results of this study, which included 34 sedentary elderly persons aged over 75 years (21 fallers and 13 nonfallers), demonstrated significantly increased CG_h and CP - CG_v motions in both axes for the fallers. In addition, the fallers presented larger CG_h motions in the mediolateral axis, suggesting an enlarged loading—unloading mechanism, which could have reflected the adoption of a step-initiating strategy. As highlighted by fractional Brownian motion modeling, the distance covered by the CP - CG_v motions before the successive control mechanisms switched was enhanced for the fallers in both axes, therefore increasing the risk that the CG would be outside of the base of support.     

流调中心抑郁量表在老年人群中的因素结构

本研究使用4903名老年人组成的全国样本,系统地检验了流调中心抑郁量表的因素结构。结果表明,Radloff的四因素结构、Guarnaccia等和Yen等的三因素结构对当前样本数据的拟合较好,但信度分析和相关分析显示积极情绪因素降低了总量表信度,并且与其他因素之间不支持共同的高阶因素（抑郁）,基于此,在使用量表合成总分的背景下,4个积极情绪项目不适合包含在CES-D量表中。随后,本研究检验了剔除积极情绪项目后量表各因素结构的拟合情况,发现积极情绪因素对量表因素结构的拟合水平贡献不大。结合拟合指数和Radloff对量表的界定,16项目的三因素结构最适合于我国老年人群,并且,这一因素结构在老年人群中具有跨性别的恒等性。     

老年结直肠癌的治疗

老年患者占结直肠癌患者的70%,因此老年人是结直肠癌的主要患病人群。为了提高结直肠癌治疗的总体疗效,我们应当特别关注老年性结直肠癌的治疗。以往,手术治疗和化疗的应用随着年龄的增高而明显减少。我们一直以为老年人手术和化疗的效果不令人满意。近期的研究改变了这一认识。证据表明辅助化疗和姑息性化疗对一般情况良好的老年人是有效而安全的。即使存在一些与年龄相关的基础疾病的老年结直肠癌患者仍然能从合理的治疗方案中获益。所以我们尚有许多工作需做,以提高老年性结直肠癌患者的疗效。腹腔镜下结肠癌根治术是对老年人安全有效的手术技术。我们期待随着经腔道的内窥镜手术技术的发展,将来会使老年性结直肠癌患者受益。     

城市“空巢”家庭特征分析

在城市化进程中,家庭空巢化正在成为一个热点问题。空巢老人是老年人中有独特需要的群体,极易产生各种身心问题。影响家庭空巢的因素很多,既有来自人口内部结构的因素．也有来自观念、社会、经济等方面的原因,并且在人口、经济、生理、休闲方式上有着独特的特征。空巢家庭的养老问题有着很大风险,因此养老模式的探讨也是一个值得关注的问题。     

主观记忆减退老年人情节记忆的行为表现及其脑机制

情节记忆是个体对特定时间,特定地点所经历的特定事件的记忆.主观报告情节记忆下降是主观记忆减退老年人最典型的表现.与健康对照组老年人相比, 主观记忆减退老年人情节记忆下降的速率更快, 罹患老年性痴呆的风险更高, 但其情节记忆加工的脑机制尚不明确.前人研究提示, 主观记忆减退老年人在外在记忆行为尚未出现损伤的情况下, 其大脑情节记忆相关脑区的神经活动已经出现异常.探究主观记忆减退的记忆神经环路关键节点和路径的异常, 揭示神经环路在老年痴呆发生发展中的变化规律, 对深入理解老年痴呆的发病机制有重要的科学意义.同时, 主观记忆减退老年人作为特殊的记忆损伤群体, 对其神经环路的深入探究, 也必将为揭示人类记忆的神经机制做出独特的贡献.     

抑制对老年人舌尖现象的影响

抑制不足理论认为老年人抑制能力不足, 易受干扰信息的影响, 阻碍对目标词的检索, 故比年轻人有更多舌尖现象。实验1操纵抑制通达子功能探讨其在老年人舌尖现象中的作用, 采用2(干扰条件：有、无)×2(年龄组：老年、年轻)的混合设计, 相比于无干扰条件, 干扰条件下舌尖现象年龄差异变得更大, 表明老年人舌尖现象和通达功能有关。实验2操纵抑制删除子功能, 采用2(是否激活干扰：是、否)×2(年龄组：老年、年轻)的混合设计, 不激活干扰条件下舌尖现象年龄差异不显著, 而激活干扰条件下舌尖现象年龄差异显著, 舌尖现象随龄增多与删除功能不足有关。通达和删除功能不足是老年人舌尖现象增多的重要原因。     

Subjective Well-Being and Its Determinant from A Study of Beijing＇s Urban Elderly

Abstract This study was designed to obtain an understanding of the subjective well - being ( SWB ) status amongChina‘s urban elderly, and to find out the major factors that could influence the status in question. Our survey wasconducted of 233 urban elderly individuals, and the data was statistically examined by multiple regression analysiswith the results that: 1 ) The SWB of China‘ s urban elderly was relatively high as only 4.5 96 of all respondentsconsidered themselves unhappy or very unhappy; 2) Major factors that had an influence on SWB included economicresource, mobility, age and social support; and 3 ) Five demographic variables accounted for 18.6 96 of the variancein SWB, which was slightly higher than that of foreign findings. It is concluded that financial security, active par-ticipation in physical and social activities, and social support are necessary for the improvement of the SWB of the el-derly.     

Banding Together: New Horizons in Lifelong Music Making

New Horizons Bands are wind and percussion bands designed for both novice and former musicians over the age of 50. This article describes the Iowa City, Iowa, program from the director's observations and from excerpted comments by participants. Not only does the band program fulfill musical aspirations, but it also provides meaningful interpersonal relationships for the adult learners and their families, the college-aged instructors, and the director.