title: [Structural variability of the functional system during activity and fatigue].
abstract: The object of the present paper is an analysis of factors causing considerable variability of functional systems (P. K. Anokhin) in their efferent part. This variability concerns the structure not only of different movements but has been established as well for similar repeated (cyclic, in particular) movements during work performed with the same working power. The problem of variability of the functional systems in fatigue is discussed.
mesh_terms: D004526:Efficiency / Q000502:physiology; D005221:Fatigue / Q000503:physiopathology*; D006801:Humans; D009043:Motor Activity / Q000502:physiology; D009132:Muscles / Q000033:anatomy & histology / Q000502:physiology; D010507:Periodicity; D005082:Physical Exertion; D013177:Sports; D013598:Systems Theory
vernacular_title: O variativnosti struktury funktsional'noĭ sistemy v protsesse deiatel'nosti i pri utomlenii.