[Hygienic evaluation of the changes in work capacity of young chess players during training].
D000293:Adolescent; D002648:Child; D006801:Humans; D007858:Learning / Q000502:physiology; D005222:Mental Fatigue / Q000209:etiology; D010988:Play and Playthings; D014938:Work Capacity Evaluation
Gigienicheskaia otsenka izmeneniĭ rabotosposobnosti iunykh shakhmatistov v protsesse trenirovochnykh zaniatiĭ.