成年早期能量摄入的生理和行为相关性：RIGHT Track 健康研究的横断面分析。
Physiologic and Behavioral Correlates of Energy Intake in Emerging Adulthood: Cross-Sectional Analysis of the RIGHT Track Health Study.
机构信息
Department of Kinesiology, University of North Carolina at Greensboro, Greensboro, NC, USA.
Department of Kinesiology, University of North Carolina at Greensboro, Greensboro, NC, USA.
出版信息
J Nutr. 2023 Jan;153(1):88-95. doi: 10.1016/j.tjnut.2022.11.011. Epub 2022 Dec 21.
BACKGROUND
Consistent findings have reported that FFM is associated with EI. However, conjoint assessments of physiologic (body composition, fasting serum leptin) and behavioral [eating behaviors and physical activity (PA)] correlates of EI during emerging adulthood have not been examined.
OBJECTIVES
We assessed associations between physiologic and behavioral correlates of EI within the context of one another in emerging adults (18-28 years old). We also assessed these associations in a subsample after the removal of probable EI underreporters.
METHODS
Cross-sectional data from 244 emerging adults (age = 19.6 ± 1.4 y; BMI = 26.4 ± 6.6 kg/m; 56.6% female) from the RIGHT Track Health study were used. Measures included body composition (BOD POD), eating behaviors (Three-Factor Eating Questionnaire), objective and subjective PA (accelerometer-derived total activity counts and Godin-Shephard Leisure-Time Exercise Questionnaire), fasting serum leptin, and EI (three 24-hour dietary recalls). Correlates independently associated with EI were entered into a backward stepwise linear regression model. Correlates that met the criteria of P < 0.05 were retained. Analyses were repeated in a subsample after removing probable EI underreporters (n = 48). Effect modification by sex (male and female) and BMI (BMI < 25 kg/m, BMI ≥ 25 kg/m) categories was also assessed.
RESULTS
In the full sample, FFM (β: 18.4; 95% CI: 9.9, 26.8), leptin (β: -84.8; 95% CI: -154.3, -15.4), dietary restraint (β: -35.2; 95% CI: -59.1, -11.3), and subjective PA (β: 2.5; 95% CI: 0.04, 4.9) were significantly associated with EI. After the removal of probable underreporters, only FFM remained significantly associated with EI (β: 43.9; 95% CI: 27.2, 60.6). No evidence of effect modification by sex or BMI categories was noted.
CONCLUSIONS
Although physiologic and behavioral correlates were associated with EI in the full sample, only FFM remained a robust correlate of EI in a subsample of emerging adults after removing probable EI underreporters.
背景
已有研究一致表明，去脂体重与 EI 相关。然而，在成年早期，我们尚未同时评估与 EI 相关的生理（身体成分、空腹血清瘦素）和行为（饮食行为和身体活动）指标。
目的
我们评估了成年早期个体中，EI 的生理和行为相关指标之间的相关性，并在去除可能的 EI 低报告者后，在亚组中评估了这些相关性。
方法
RIGHT Track Health 研究的 244 名成年早期个体（年龄 19.6 ± 1.4 岁；BMI 26.4 ± 6.6 kg/m；56.6%为女性）提供了横断面数据。测量指标包括身体成分（BOD POD）、饮食行为（三因素饮食问卷）、客观和主观身体活动（加速度计衍生的总活动计数和 Godin-Shephard 休闲时间运动问卷）、空腹血清瘦素和 EI（三个 24 小时膳食回忆）。与 EI 独立相关的指标被纳入逐步向后线性回归模型。保留符合 P < 0.05 的指标。在去除可能的 EI 低报告者（n = 48）后，在亚组中重复了分析。还评估了性别（男性和女性）和 BMI（BMI < 25 kg/m、BMI ≥ 25 kg/m）类别对效应修饰的影响。
结果
在全样本中，去脂体重（β：18.4；95%置信区间：9.9，26.8）、瘦素（β：-84.8；95%置信区间：-154.3，-15.4）、饮食抑制（β：-35.2；95%置信区间：-59.1，-11.3）和主观身体活动（β：2.5；95%置信区间：0.04，4.9）与 EI 显著相关。在去除可能的低报告者后，只有去脂体重与 EI 显著相关（β：43.9；95%置信区间：27.2，60.6）。未发现性别或 BMI 类别对效应修饰的证据。
结论
尽管生理和行为相关因素与全样本中的 EI 相关，但在去除可能的 EI 低报告者后，去脂体重仍然是成年早期亚组中 EI 的一个稳健相关因素。
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