目的:研制适用于我国中年人的身体意象三维图像，并验证图像的效度和信度。方法:运用文献资料及专家咨询法，参考我国及WHO成年人体重指数（BMI）分级标准等，采用3D Studio Max和Adobe Photoshop CC软件绘制我国男性、女性不同体型中年人的身体意象三维图像。招募河南郑州市42名45~59岁的中年人进行身体意象三维图像的验证。通过问卷调查和体格检查，检验调查对象选择体型和实际体型的符合度；采用双能骨密度仪（DXA）测定身体成分，检验图像的结构效度；使用图像和效标问卷调查身体满意度，检验图像的实证效度；初次调查14 d后进行重复调查，并请3名专家对调查对象目前体型进行评分，检验图像的重测信度和评定者间信度。采用Pearson、Spearman、Kendall相关分析和Kappa一致性分析等方法评价图像的效度和信度。结果:42名研究对象年龄为52.7岁，其中男性13名，女性29名。研制中年男、女性身体意象三维图像各1组，每组各包括8幅图像。有73.8%的研究对象选择体型与实际体型相符，加权Kappa系数为0.755（n P<0.01）。结构效度检验显示研究对象选择体型与体重及体成分指标如脂肪含量等呈正相关，Pearson相关系数为0.623~0.717（n P<0.05）。重测信度检验显示两次调查结果呈正相关，Spearman相关系数为0.784~0.821（n P<0.05）。评定者间信度检验显示3名专家对研究对象目前体型的评分呈正相关，Kendall秩相关系数为0.818~0.878（n P<0.05）。n 结论:中年人身体意象三维图像研制原则及参考依据可靠，图像的效度、信度较好。“,”Objective:To develop a three-dimensional body image stimuli suitable for middle-aged people in China, and verify the validity and reliability of the body image stimuli.Method:According to China and World Health Organization body mass index classification standards of adults, a set of three-dimensional body image stimuli of Chinese middle-aged males and females with different body size was developed by using 3D Studio Max and Adobe Photoshop CC based on the literature and expert consultation method. Forty-two 45- and 59-year-old middle-aged people in Zhengzhou City, Henan Province were recruited to verify the three-dimensional body image stimuli. Through questionnaire survey and physical examination, the coincidence between the selected body type and the actual body type was tested; the body composition was measured by dual-energy absorptiometry (DXA), and the structure validity of the image was tested; the body size satisfaction was investigated by the body image stimuli and the standard questionnaire, and the empirical validity of the image was tested. The repeated survey was conducted 14 days after the initial survey, and three experts were invited to score the current somatotype of the subjects to test the test-retest reliability and inter-rater reliability of the body image stimuli. Pearson, Spearman, Kendall correlation and Kappa consistency analysis were used to evaluate the validity and reliability of the body image stimuli.Results:The average age of 42 subjects was 52.7 years old, including 13 males and 29 females. A group of three-dimensional body image stimuli of middle-aged men and women were developed, and each group included 8 images. 73.8% of the subjects chose the body size consistent with the actual body type, and the weighted Kappa coefficient was 0.755 (n P<0.01). The selected somatotype was positively correlated with body weight and body composition indexes such as fat content, and the Pearson correlation coefficient of construct validity was 0.623-0.717 (n P<0.05). The results of the two surveys were positively correlated, and the Spearman correlation coefficient of test-retest reliability was 0.784-0.821 (n P<0.05). The scores of the three experts on the current somatotype of the subjects were positively correlated, and the Kendall correlation coefficient of inter-rater reliability was 0.818-0.878 (n P<0.05).n Conclusion:The development of principle and reference basis of three-dimensional body image stimuli of middle-aged people is reliable, and the validity and reliability of the body image stimuli are good.