美国陆军特种作战部队士兵作战部署期间的能量亏空与能量平衡相关因素

Energy Deficit and Factors Associated with Energy Balance during a Combat Deployment in U.S. Army Special Operation Forces Soldiers.

机构信息

Nutrition Care Division, Madigan Army Medical Center, Joint-Base Lewis McChord, WA 98433, USA.

Military Nutrition Division, U.S. Army Research Institute of Environmental Medicine, Natick, MA 01760, USA.

出版信息

Nutrients. 2024 Sep 12;16(18):3072. doi: 10.3390/nu16183072.

DOI:10.3390/nu16183072

PMID:39339672

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11434678/

Abstract

UNLABELLED

The purpose of this study was to determine the difference between estimated energy expenditure (EE) and self-reported dietary intake (EI), and factors associated with energy balance in deployed U.S. Army Special Operations Forces (SOF) Soldiers.

METHODS

Forty-six SOF Soldiers (age: 30.1 ± 3.5 yrs, body mass index: 27.7 ± 4.1 kg/m) completed surveys on demographic data, mission activity characteristics, gastrointestinal issues, ration consumption, resilience, mood state, and dietary intake using a 127-question food frequency questionnaire at the end of a six-month deployment. EE was estimated using a SOF-specific prediction equation with a physical activity factor of 2.1. A paired -test compared reported energy intake (EI) with estimated energy expenditure (EE). Pearson correlations identified significant variables associated with energy balance, which were then incorporated into a multiple linear regression model. The regression analysis included Profile of Mood States (POMS) anger and POMS depression as predictor variables to determine their influence on energy balance.

RESULTS

Reported mean EI was 2512 ± 1059 kcal·d, while estimated mean EE was 5272 ± 525 kcal·d. The mean energy imbalance was -2854 kcal/d (95% CI: -2655 to -3055, < 0.001), with all participants in negative energy balance (range: -492 to -3813 kcal/d). POMS depression (r = 0.517, < 0.01) and POMS anger (r = 0.363, = 0.020) were associated with energy balance. The regression model was significant (R = 0.23, F (2, 38) = 7.02, < 0.01), with POMS depression significantly predicting energy balance (β = 50.76, = 0.011).

CONCLUSIONS

Deployed SOF Soldiers reported high EE and limited EI, which may negatively impact performance. Higher POMS depression scores were associated with lower energy deficits. Future studies should investigate the relationship between mood and energy balance, using direct measures of EI and EE.

摘要

未加标签

本研究的目的是确定美国陆军特种作战部队（SOF）士兵的能量估计消耗（EE）与自我报告的饮食摄入（EI）之间的差异，以及与能量平衡相关的因素。

方法

46 名 SOF 士兵（年龄：30.1 ± 3.5 岁，BMI：27.7 ± 4.1 kg/m）在为期六个月的部署结束时，使用包含 127 个问题的食物频率问卷完成了关于人口统计学数据、任务活动特征、胃肠道问题、口粮消耗、韧性、情绪状态和饮食摄入的调查。EE 使用具有 2.1 体力活动系数的 SOF 特定预测方程进行估算。配对 t 检验比较报告的能量摄入（EI）与估计的能量消耗（EE）。Pearson 相关性确定与能量平衡相关的显著变量，然后将这些变量纳入多元线性回归模型。回归分析包括心境状态问卷（POMS）愤怒和 POMS 抑郁作为预测变量，以确定它们对能量平衡的影响。

结果

报告的平均 EI 为 2512 ± 1059 kcal·d，而估计的平均 EE 为 5272 ± 525 kcal·d。平均能量不平衡为-2854 kcal/d（95%CI：-2655 至-3055，<0.001），所有参与者均处于负能量平衡状态（范围：-492 至-3813 kcal/d）。POMS 抑郁（r = 0.517，<0.01）和 POMS 愤怒（r = 0.363，<0.020）与能量平衡相关。回归模型具有统计学意义（R = 0.23，F（2, 38）= 7.02，<0.01），POMS 抑郁显著预测能量平衡（β = 50.76，<0.011）。