This study aimed to verify the effectiveness of an obesity management program based on an information-motivation-behaviour skills model using a mobile application and social media among military personnel with obesity in the Republic of Korea. As a result of analyzing the effect of the intervention, dietary practices and health status increased, whereas body mass index, fat percentage, and waist circumference decreased over time. The program effectively improved target health behaviours and outcomes in obesity management. Further studies are necessary to confirm the effects of the obesity management program using a randomized controlled trial design including a control group. Introduction: Obesity among military personnel has become a serious issue. This study aimed to verify the effectiveness of an obesity management program based on an information-motivation-behaviour skills model using a mobile application and social media among military personnel with obesity in the Republic of Korea. Methods: A one-group pretest-posttest design was employed to investigate the effects of the program. Thirty individuals participated in an obesity management program for 12 weeks. Body mass index, body fat percentage, and waist circumference were measured, and dietary practices, physical activity, perceived health status, and depressive symptoms were assessed using self-report questionnaires. Analysis was performed using a generalized estimating equation. Results: Dietary practices (beta = 0.674, p = 0.002) and health status (beta = 0.330, p <= 0.001) increased, whereas body mass index (beta = -0.303, p = 0.001), fat percentage (beta = -0.599, p = 0.005), and waist circumference (beta = -0.936, p = 0.023) decreased over time during the program. Discussion: The program effectively improved target health behaviours and outcomes in obesity management and, therefore, could be used as a practical obesity management strategy for military personnel with obesity, regardless of time and location restrictions. Introduction : L'ob & eacute;sit & eacute; est devenue un probl & egrave;me grave au sein du personnel militaire. Cette & eacute;tude visait & agrave; v & eacute;rifier l'efficacit & eacute; d'un programme de prise en charge de l'ob & eacute;sit & eacute; & agrave; partir d'un mod & egrave;le d'habilet & eacute;s en mati & egrave;re d'information, de motivation et de comportement reposant sur une application mobile et sur les r & eacute;seaux sociaux, d & eacute;ploy & eacute; aupr & egrave;s du personnel militaire ob & egrave;se de la R & eacute;publique de Cor & eacute;e. M & eacute;thodologie : Une m & eacute;thodologie pr & eacute;test-post-test sans groupe de contr & ocirc;le a & eacute;t & eacute; privil & eacute;gi & eacute;e pour explorer les effets du programme de prise charge de l'ob & eacute;sit & eacute;, auquel 30 personnes ont particip & eacute; pendant 12 semaines. L'indice de masse corporelle, l'indice de masse grasse et le tour de taille ont & eacute;t & eacute; mesur & eacute;s, et les pratiques alimentaires, l'activit & eacute; physique, l'& eacute;tat de sant & eacute; per & ccedil;u et les sympt & ocirc;mes d & eacute;pressifs ont & eacute;t & eacute; & eacute;valu & eacute;s au moyen de questionnaires d'auto & eacute;valuation. L'analyse a fait appel & agrave; une & eacute;quation d'estimation g & eacute;n & eacute;ralis & eacute;e. R & eacute;sultats : Les pratiques alimentaires (beta = 0,674, p = 0,002) et l'& eacute;tat de sant & eacute; (beta = 0,330, p <= 0,001) se sont am & eacute;lior & eacute;s, tandis que l'indice de masse corporelle (beta = -0,303, p = 0,001), l'indice de masse grasse (beta = -0,599, p = 0,005) et le tour de taille (beta = -0,936, p = .023) ont diminu & eacute; au fil du programme. Discussion : Le programme a r & eacute;ussi & agrave; susciter les meilleurs comportements et les meilleurs r & eacute;sultats de sant & eacute; cibl & eacute;s par la prise en charge de l'ob & eacute;sit & eacute; et, par cons & eacute;quent, pourrait devenir une strat & eacute;gie pratique de prise en charge de l'ob & eacute;sit & eacute; aupr & egrave;s du personnel militaire ob & egrave;se, quels que soient le moment et les restrictions locales.
