Davidson Jeanette, Getz Marjorie
College of Education and Health Sciences, Director, Didactic Program in Dietetics, Bradley University, 215 Bradley Hall, 1501 W. Bradley Ave., Peoria, IL 61625, USA.
J Nutr Elder. 2004;24(1):53-68. doi: 10.1300/J052v24n01_04.
Early detection of nutritional risk in free-living elderly is critical in healthcare, yet comprehensive measurements are time consuming and can be frustrating to both health professionals and elderly. In addition, body composition measurements provide information regarding fat and fat-free mass that have been linked to morbidity and mortality in elderly. In this study, nutritional risk was assessed in 69 elderly, aged 50-90 years, attending congregate meal-site programs, using Mini Nutritional Assessment, and body composition was assessed by bioelectric impedance. Analysis revealed that 31.9% of the elderly were at risk for malnutrition and 2.9% were malnourished. Males had significantly greater body weight, height and fat-free mass, and females had significantly greater body fat as percentage of body weight, but there was no gender difference in nutritional risk. Of elderly, 36.2% had body mass index > 85th percentile and 8.7% < 15th percentile using national population reference standards. Age-related decline in fat-free mass was an early indicator of changes in body composition.
在日常活动的老年人中早期发现营养风险在医疗保健中至关重要,但全面测量耗时且可能让健康专业人员和老年人都感到沮丧。此外,身体成分测量可提供与脂肪和去脂体重相关的信息,这些与老年人的发病率和死亡率有关。在本研究中,使用微型营养评定法对69名年龄在50至90岁、参加集体用餐项目的老年人进行营养风险评估,并通过生物电阻抗法评估身体成分。分析显示,31.9%的老年人存在营养不良风险,2.9%的老年人营养不良。男性的体重、身高和去脂体重显著更高,女性的体脂占体重的百分比显著更高,但营养风险不存在性别差异。按照全国人口参考标准,36.2%的老年人身体质量指数高于第85百分位数,8.7%的老年人低于第15百分位数。去脂体重随年龄的下降是身体成分变化的早期指标。