Relationship Between Glycemic Control and Irisin in Type 2 Diabetic Patients With Sarcopenic or Non-sarcopenic Obesity

The goal of this observational study is to compare glycemic control and irisin levels in subjects with diabetes mellitus type 2 with sarcopenic obesity vs non-sarcopenic obesity. The main questions it aims to answer are: Is glycemic control worse in diabetic patients with sarcopenic obesity? Are irisin levels higher in patients with non-sarcopenic obesity? Participants will be asked to: * Fill in three questionaries on lifestyle * Perform two physical performance tests The investigators will collect the following data: * Anthropometric measurements * Body composition by bioelectrical impedance analysis. * Results of routine blood analyses * Irisin levels by drawing a vial of blood from the antecubital vein