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The complexity of the movements of the bones of the knee joint requires an anatomical study to construct a knee prosthesis. The reasons for knee replacement are related to wear of the articular cartilage, which leads to pain, deformation, and limitation of movements. The consequences of the surgical intervention allow functional restoration of the knee joint and the supporting function of the lower limb. Kinesitherapy begins the day after surgery and aims to reduce pain, restore mobility of the knee joint, actively lock the knee during extension, increase and maintain muscle strength, and ensure the functional independence of patients. To a large extent, the volume of movement is restored, and the pain symptoms are reduced. Patients have the comfort of everyday movements and the possibility of participating in certain sports activities—swimming, cycling, and golf. The paper deals with pharmacological prophylaxis, the kinesitherapeutic program, and total knee arthroprosthesis.

Cardiovascular diseases (CVD) are socially significant diseases due to high morbidity and loss of people of working age. In Bulgaria, they are the leading cause of mortality among the population and are a consequence of the effect of cardiovascular risk factors. The draft of the National Health Strategy (NHS) 2021–2030 reports on their wide distribution, as well as on the insufficient knowledge, skills and motivation for their prevention and control. The purpose of this review is to address the prevention of cardiovascular disease, which is a significant problem worldwide. Prevention goals for patients with established cardiovascular disease and those at high risk include smoking cessation, healthy eating, physical activity, and lowering body mass index. There are various methods that are part of health promotion to reduce CVD risks. These methods include motivational interviewing, non-pharmacological means, the use of certain medications for CVD prevention, as well as physical activity. Strategies for effective primary prevention refer to engaging the patient to change their lifestyle and identifying risk factors, while secondary prevention is aimed at activities to detect the disease early and to slow down its progression. It is necessary to create a strategy for timely preventive actions with a view to preventing the negative influence of risk factors and improving people‘s heart health.

Coronavirus disease 2019 (COVID-19) is still a major medical concern. Patients who have recovered from the infection from COVID-19 face the ordeal of post-covid syndrome. In these patients, there is a decrease in physical abilities, in particular musculoskeletal complications and post-traumatic stress, depression and chronic fatigue, which impair their quality of life. This necessitates long-term rehabilitation, which supports recovery after hospitalization. Treatment through movement is part of the rehabilitation measures contributing to the functional recovery of patients with post-covid syndrome. To study how the functional capabilities of these patients improve and how their quality of life is affected, we created a set of physical exercises to be performed at home for 6 months. At baseline and at the end of the study, patients completed the SF-36 quality of life questionnaire. The aim of the study was to track the changes in the quality of life of patients with post-covid syndrome by influencing their functional state. Our study found a decline in the quality of life of the examined patients. After the application of the kinesitherapy program, the functional status of the patients improved, their functional independence was optimized, which contributed to the improvement of the quality of life of the post-covid patients syndrome.

A healthy lifestyle is the main expression of positive health behavior. Movement is a natural need of every child and is a basic preventive tool for strengthening children‘s health. Sport is a complex process that improves the qualities of movements, strengthens the muscles of the body and forms physical endurance through its positive influence on all organs and systems. Sports activities have a beneficial effect on the psyche and personality of adolescents and are defined as the main factor for maintaining, preserving and improving health and a healthy lifestyle. In most European countries, the teaching methodology is aimed at finding the meaning and encouraging the desire of each student to engage in regular physical activity. The article aims to familiarize the audience with the impact of sports on various organs and systems, with the benefits for the physical and mental health of adolescents from sports activities, as well as to provide information on recommendations for the correct choice of sports depending on the constitution and disposition of adolescents.