DUBNA, Ye., TERESHCHENKO, L. and Vasіlieva A. The activity of Na+, K+-ATPase and adenine nucleotides content in the heart muscle of rats under conditions of combined effect of ionizing radiation and intense physical exercise. Journal of Education, Health and Sport. Online. 30 September 2024. Vol. 68, p. 56348. [Accessed 10 February 2026]. DOI 10.12775/JEHS.2024.68.56348.