title: [Functional status of the cardiovascular system of schoolchildren in the preparatory grades in different types of organization of the recreation periods].
authors.forename: Iu K
authors.initials: IuK
authors.lastname: Borisov
authors.forename: V I
authors.initials: VI
authors.lastname: Gleĭzerov
authors.forename: I L
authors.initials: IL
authors.lastname: Mastiaĭkina
authors.forename: L I
authors.initials: LI
authors.lastname: Sharokanova
mesh_terms: D002320:Cardiovascular Physiological Phenomena; D002648:Child; D003479:Curriculum; D005260:Female; D006801:Humans; D008297:Male; D010806:Physical Education and Training / Q000379:methods; D011998:Recreation; D002094:Republic of Belarus; D012572:School Health Services / Q000458:organization & administration*
vernacular_title: Funktsional'noe sostoianie serdechno-sosudistoĭ sistemy uchashchikhsia podgotovitel'nykh klassov pri razlichnoĭ organizatsii provedeniia peremen.