title: [Contraction and relaxation of cardiac muscle during adaptation to physical stress].
mesh_terms: D000222:Adaptation, Physiological; D000818:Animals; D009200:Myocardial Contraction; D005082:Physical Exertion; D051381:Rats
vernacular_title: Sokrashchenie i rasslablenie serdechnoĭ myshtsy pri adaptatsii k fizicheskim nagruzkam