Senior fitnes, z.s. is a non-profit organization which organizes activities for middle-aged and elderly exercisers. The project aims to create conditions for physical activities of elderly and pre-elderly individuals, including leading fitness and rehabilitation programmes. We arrange regular exercises for various groups of elderly people, including people with impaired health due to chronic musculoskeletal and internal diseases. The ultimate goal is to maintain and extend the mobility of elderly people and to maintain stabilization of patients with chronic diseases.