In an age of scientific and technical innovation, with the rapid development of digital technologies, the promotion of physical activity among adults becomes relevant, as it is irreplaceably important to strengthen their overall health. The article reveals the attitude of health-care specialists to the importance of promoting physical activity in adults, needs, reasons for choice, conditioning factors, ways and means of promoting physical activity in adults, the possibilities for its increase and development, and the importance of the professionalism of health-care specialists in promoting physical activity in adults. The research confirmed the validity of theoretical approaches and empirical strategy from the point of view of health-care specialists, the importance of the promotion of physical activity for adults’ physical and mental health, a harmonious personality, quality of life, and social and economic well-being. Adults’ physical activity is determined by various mutually influencing factors, emphasising the possibilities of promoting physical activity for strengthening their health, empowering personal potential, focusing on the individuality of the person, applying andragogic access, learning from experience, etc.