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 PB Russian Association of Computer Science in Sport