Tachibana Yuka, Kasuya Momoko, Haito Yuriko, Maeno Masami, Banba Kihoko, Miyawaki Takashi, Komenami Naoko
Department of Living Environment, Graduate School of Home Economics, Kyoto Women's University, Kyoto 605-8501, Japan.
Department of Nutrition, Hyogo Prefectural Awaji Medical Center, Sumoto 656-0021, Japan.
Nutrients. 2025 Jul 14;17(14):2313. doi: 10.3390/nu17142313.
BACKGROUND/OBJECTIVES: Proper management of food services aimed at preventing malnutrition and weight loss among residents of long-term care facilities is a critical priority. Accordingly, accurate prediction of energy intake requirements is necessary. This study aimed to estimate the energy intake required to prevent weight loss in residents of Japanese long-term care facilities.
Body weight and 12-day dietary intake were measured from residents aged ≥75 years with a body mass index (BMI) < 25.0 kg/m who were consuming a regular or chopped diet. In the survey, individuals with oral intake were included, while those with swallowing problems, serious illnesses, dietary restrictions, or medications causing appetite loss were excluded. The rate of body-weight loss and the energy intake per kilogram of body weight (kcal/kg BW) during each 6-month period were calculated. The energy intake per kilogram of body weight corresponding to the rate of body-weight loss of 0% was estimated from the regression line between the rate of body-weight loss and energy intake per kilogram of body weight.
The data was analyzed for 99 residents (15 men and 84 women, age 89.3 ± 5.0 years, BMI 20.3 ± 2.6 kg/m). From the regression results in all participants, the energy intake per kilogram of body weight corresponding to the rate of body-weight loss of 0% was 31.4 kcal/kg BW overall and 33.4 kcal/kg BW for those with a BMI < 18.5 kg/m.
The calculation of energy intake using a regression line may be able to predict the energy intake required for weight maintenance without using instrumental measurements or estimation equations, especially in the case of underweight individuals.
背景/目的：妥善管理食品服务以预防长期护理机构居民的营养不良和体重减轻是一项关键优先事项。因此，准确预测能量摄入需求是必要的。本研究旨在估计日本长期护理机构居民预防体重减轻所需的能量摄入量。
对年龄≥75岁、体重指数（BMI）<25.0kg/m²且食用常规或切碎饮食的居民测量体重和12天的饮食摄入量。在调查中，纳入有口服摄入的个体，排除有吞咽问题、严重疾病、饮食限制或导致食欲减退药物的个体。计算每6个月期间的体重减轻率和每千克体重的能量摄入量（千卡/千克体重）。根据体重减轻率和每千克体重能量摄入量之间的回归线，估计体重减轻率为0%时每千克体重的能量摄入量。
对99名居民（15名男性和84名女性，年龄89.3±5.0岁，BMI 20.3±2.6kg/m²）的数据进行了分析。从所有参与者的回归结果来看，体重减轻率为0%时每千克体重的能量摄入量总体为31.4千卡/千克体重，BMI<18.5kg/m²的个体为33.4千卡/千克体重。
使用回归线计算能量摄入量可能能够在不使用仪器测量或估计方程的情况下预测维持体重所需的能量摄入量，尤其是在体重过轻的个体中。
