This cross-sectional study investigated the associations among internal body orientation, body appreciation, intuitive eating, age, and BMI in men and women between 30 and 70 years old as delineated in the acceptance model of intuitive eating. Self-report measures were administered to a final sample of 522 individuals consisting of early-adult men (ages 30–44; n = 153), middle-adult men (ages 45–70; n = 108), early-adult women (ages 30–44; n = 135), and middle-adult women (ages 45–70; n = 126). Overall mean age was 45.03 (SD = 10.95). Structural equation modeling evidenced that, for both age groups of men and women, internal body orientation was positively associated with body appreciation and body appreciation was positively associated with intuitive eating. Internal body orientation was positively associated with intuitive eating in each group, except early-adult women. The associations among age and BMI with the aforementioned variables were inconsistent. Although evidencing measurement non-invariance among a number of parameters, multigroup structural invariance analyses showed that the associations among internal body orientation, body appreciation, intuitive eating, age, and BMI were invariant across each gender and age. These results further confirm components of the acceptance model of intuitive eating among men and women in early-adulthood and middle-adulthood.

这项横断面研究调查了直觉饮食接受模型中描述的 30 至 70 岁男性和女性的内部身体取向、身体欣赏、直觉饮食、年龄和 BMI 之间的关联。对 522 个人的最终样本进行了自我报告测量，其中包括早熟男性（30-44 岁；n = 153）、中年男性（45-70 岁；n = 108）、早熟女性（ 30–44 岁；n = 135）和中年女性（45–70 岁；n = 126）。总体平均年龄为 45.03 ( SD= 10.95）。结构方程模型证明，对于男性和女性这两个年龄组，内部身体取向与身体欣赏呈正相关，身体欣赏与直觉饮食呈正相关。除早成年女性外，各组的内部身体取向与直觉饮食呈正相关。年龄和 BMI 与上述变量之间的关联不一致。虽然证明了许多参数之间的测量非不变性，但多组结构不变性分析表明，内部身体取向、身体欣赏、直觉饮食、年龄和 BMI 之间的关联在每个性别和年龄之间都是不变的。