1. Agadzhanyan N.A., Tsaturian L.Д., Kuvandykova R.H. Features of Vegetative Regulation of Heart Rhythm, Peripheral Blood and Hormonal Profile in Adolescents of Stavropol Region: Ethnophysiological Aspects. Ekologiya cheloveka = Human Ecology. 2015;22(8):26–31 (In Russ.). https://doi.org/10.17816/humeco17005
2. Baevskii R.M. Concept of Physiological Norm and Criteria of Health. Rossiiskii fiziologicheskii zhurnal = Russian Journal of Physiology. 2003;89(4):473–489 (In Russ.).
3. Bocharova I.A., Ageyeva E.S. Adaptation of Cardiovascular System to Regular Exercise. Vestnik Khakasskogo gosudarstvennogo universiteta im. N.F. Katanova. 2015;(12):24–26 (In Russ.).
4. Ushakov A.S., Kleshchenkova N.E., Nenasheva A.V., Astakhov S.I., Ryabina K.E. Heart Rate Variability in Learning Process in Healthy Schoolgirls Not Doing Sports. Teoriya i praktika fizicheskoi kul’tury = Theory and Practice of Physical Culture. 2016;(3):20–22 (In Russ.).
5. Ryabova I.V., Philippova S.N., Alekseeva S.I., Sobolevskaya T.A., Chernogorov D.N. Adaptation and Regulatory Systems in Primary Schoolchildren. Chelovek. Sport. Meditsina = Human. Sport. Medicine. 2021;20(4):55–61 (In Russ.). https://doi.org/10.14529/hsm200406