Body-Based and Mind-Based Regulation in Overweight and Obese Women

This study will compare two regulation-based approaches in women with overweight or obesity. The first approach is a body-based regulation program including breathing awareness, body-awareness-based yoga practices, non-invasive manual auricular stimulation, and restorative relaxation. The second approach is a mind-based regulation program including structured psychoeducation and cognitive-emotional awareness activities focused on stress, emotions, automatic thoughts, and emotional eating. Participants will be women aged 18 to 60 years with a body mass index between 27.0 and 39.9 kg/m². Eligible participants will be randomly assigned to one of the two intervention groups. Both programs will last 8 weeks. The main aim of the study is to examine and compare the preliminary effects of these two approaches on heart rate variability, especially RMSSD, which is an indicator of cardiac vagal regulation. The study will also assess emotional eating, self-compassion, mindfulness, body measurements, body composition, adherence to the program, and possible adverse events. Assessments will be performed at baseline and after the 8-week intervention by an evaluator who is blinded to group allocation.