Friedrich Björn, Bauer Jürgen M, Hein Andreas, Diekmann Rebecca
Division Assistance Systems and Medical Device Technology, Department of Health Services Research, Carl von Ossietzky University, 26129 Oldenburg, Germany.
Center for Geriatric Medicine, Agaplesion Bethanien Krankehaus Heidelberg, University of Heidelberg, 69117 Heidelberg, Germany.
Nutrients. 2021 Jun 7;13(6):1955. doi: 10.3390/nu13061955.
Malnutrition is a well-known risk factor for deteriorated physical function, disability and loss in independence in older adults. An unintended loss in body weight of more than 5% in 3 months is one indicator for malnutrition. In this study we examined the relationship between meal preparation time, hand grip strength, and body weight in order to map impending nutritional problems using ambient sensors. Data were collected in the domestic environments of 20 (pre-) frail older adults aged 85.75 y (Standard Deviation: 5.19 y) over 10-months of observation. Collecting included physical function and nutritional status of the participants and meal preparation time by a combination of motion and power sensor events. Analysis was done by rank correlation of hand grip strength, body weight, and meal preparation time. Ten participants aged 85.1 years (Standard Deviation: 4.6 y) were included. The results show a significant correlation (≥0.99) of the meal preparation time with the hand grip strength. This result validated the meal preparation time as a suitable measure for analysing the correlation between meal preparation time and body weight, and a significant correlation (≥0.99) found. Hence the meal preparation time could be used as an indicator for malnutrition. However, causalities have to be conducted by further clinical studies.
营养不良是老年人身体机能衰退、残疾和失去独立生活能力的一个众所周知的风险因素。三个月内体重意外下降超过5%是营养不良的一个指标。在本研究中，我们研究了 meal preparation time、握力和体重之间的关系，以便使用环境传感器来发现即将出现的营养问题。在10个月的观察期内，我们收集了20名年龄为85.75岁（标准差：5.19岁）的（准）体弱老年人在家庭环境中的数据。收集的数据包括参与者的身体机能和营养状况，以及通过运动和功率传感器事件组合得出的meal preparation time。通过握力、体重和meal preparation time的等级相关性进行分析。纳入了10名年龄为85.1岁（标准差：4.6岁）的参与者。结果显示meal preparation time与握力之间存在显著相关性（≥0.99）。这一结果验证了meal preparation time作为分析meal preparation time与体重之间相关性的合适指标，并且发现了显著相关性（≥0.99）。因此，meal preparation time可以用作营养不良的一个指标。然而，因果关系必须通过进一步的临床研究来确定。
