TY JOUR TI Towards a mathematical theory of athletic training. Part 2. Mathematical modeling of adaptation processes under the influence of training loads: the approach of Viktor Nikolaevich Seluyanov KW mathematical modeling KW athletic training KW adaptation KW compartmental models KW differential equations KW muscle bioenergetics KW long-term adaptation KW myofibrils KW mitochondria KW simulation modeling JO Russian Journal of Information Technology in Sports AU Timme, E.A. PY 2025 IS 2 PB Russian Association of Computer Science in Sport