The purpose of the master’s thesis was to determine the impact of exercise on the body posture within eight weeks. Two testers, one 24 and the other 49 years old were included in the study. Initially we conducted a survey in which we asked about their general characteristics, feeling at home and at the workplace, the overall satisfaction with themselves and their way of life. We did clinical observation of body posture and FMS testing, on the basis of which we have drawn up an 8-week exercise program. The exercises were taking place at home. Each exercise unit consisted of dynamic warming, gymnastic exercises, exercise for the development of strength and flexibility, stabilization exercise and balance. The testers had practice twice a week for eight weeks. At the end of the training process, we performed the survey and all the tests again and compared them with the results of the initial testing. On the basis of the obtained results, we concluded the effect of exercise on the body posture. After the entire exercise process, the first improvements in body posture began, which was evident from the clinical observation of the body posture, but no major changes occurred since the training period was relatively short. However, a subjective assessment of the body posture, obtained through a survey and self-test is an indicator of performance of the exercise. An improvement in the movement efficiency was measured using FMS tests, and the results were more than 100 % better than in the beginning. At the beginning of the test, they reached 5 and 8 points out of 21, and at the end, they both reached 20. The feeling, self-esteem, self-confidence and energy of both testers also improved. Thus, the 8-week exercise program had a positive effect on the improvement of the body posture as well as in their lifestyle. We can conclude that functional exercise helps to improve the body posture, but the training process has to be longer than 8-weeks.