Effect of Chronic Exercise on Human Thermogenic Adipose Tissue & Elucidation of Mechanisms

Physical exercise can stimulate heat production in our bodies. This is healthy because it burns sugar and fat. Heat production is influenced, among other things, by what is known as 'brown or beige adipose tissue', which is capable of producing heat in our bodies. However, everyone reacts differently to physical exercise. In addition, different types of exercise can influence heat production. That is why the investigators want to use this study to investigate why different people show different reactions in brown and beige adipose tissue. This is important for our metabolism and our health. The study will last approximately 6 weeks. The participants are healthy individuals who are participating in the study. The test subjects will be divided into two groups by drawing lots, so that there are equal numbers of men and women in each group. One group will complete a 6-week endurance training programme. The other group (control) will not do any additional training and will serve as a control group. However, the accompanying examinations will be the same for both groups. By comparing the two groups, the investigators will be able to see whether training has a better effect on heat production and thus health. As part of this study, the investigators want to investigate how 6 weeks of endurance training affects the function of brown and beige adipose tissue. To do this, the investigators will take some blood and adipose tissue samples before and after the training period.