TY JOUR TI DEPENDENCE OF THE NATURE OF NUTRITION ON THE LENGTH OF THE COMPETITION DISTANCE AND GENDER OF ATHLETES AGED 40 YEARS AND OLDER KW public health KW older generation KW veteran athletes KW lifestyle KW nutrition characteristics JO CASPIANJOURNALOF MEDICINE AND PHARMACY AU Cherkasov, S.. AU Grigor'ev, G.. PY 2020 IS 1 PB Astrakhan State Medical University