Effect of Exercise on GDF-15 Levels in Prediabetic Patients

Inclusion Criteria: * Body mass index 30-34.9 kg / m2 * Sedentary life-style (Physical activity below 300 kcal / day will be assessed by Minnesota Leisure Physical Activity Questionnaire) * Those who have sufficient motivation to participate in the exercise program (will be evaluated by face-to-face interview by the researchers) * Having the same weight for 6 months before participating in the study (± 2.5 kg) * Those diagnosed with prediabetes by oral glucose tolerance test and / or HbA1c measurement will be included. Exclusion Criteria: * Serious medical condition (e.g. advanced malignancy or major neurological, psychiatric or endocrine disease, respiratory failure, etc.) * Having cardiovascular disease * Having diabetes * Using metformin * Taking hormone replacement therapy * less than 1 year life expectancy * HIV positivity * Substance use * Functional dependence * Cognitive weakness * Those with other diseases that will affect the study result (respiratory diseases, muscle diseases, etc.) * Those who use drugs or supplements that will affect the results of the study