Artemyevа N K, Istomin A V, Lavrichenko S P, Kolesnikova A A, Aldarova L M
Kuban State University of Physical Education, Sport and Tourism, 350015, Krasnodar, Russian Federation.
Federal Scientific Center for Hygiene named after F.F. Erisman of Federal Service for Supervision of Consumer Rights Protection and Human Welfare, 141014, Moscow region, Mytischi, Russian Federation.
Vopr Pitan. 2020;89(6):104-112. doi: 10.24411/0042-8833-2020-10083. Epub 2020 Nov 20.
An increase in special performance in elite sports requires optimization of the metabolic parameters of the organism at all stages of the annual training cycle. In this regard, it is relevant to analyze the adequacy of the actual nutrition of athletes, taking into account the energy expenditures of training loads in different seasons of the year. of this study was to analyze the integral adequacy and balance of the main and essential components of the diet of athletes in different seasonal periods of the annual training cycle. . 20 highly qualified road cyclists (the average age 22.4± 0.7 years) have been examined. Individual energy expenditures of the subjects has been determined, the actual nutrition of athletes was studied by the method of 24-hour dietary recall. In different seasons of the year, in the conditions of training camps, 1540 dietary rations of athletes have been analyzed over 5 years. The study of the energy balance and the adequacy of the actual nutrition was carried out using the developed author's automated system "FP Diet". . The average daily energy consumption of cyclists at different stages of the annual training cycle ranged from 4503±69 to 4646±88 kcal, which indicates that athletes belong to one of the energy-intensive sports. The calorie intake practically satisfied the average daily energy expenditures, however, the low values of the integral indicator of adequacy (43.2% for the winter-spring season and 60.0% for the summerautumn season) indicated significant imbalances in the actual diet for the main and essential nutritients, especially noticeable in the groups of vitamins and fatty acids. Against the background of insufficient consumption of vegetable oils, which causes a lack of monounsaturated fatty acids in the diet, an excessive consumption of saturated fatty acids, a deficiency of vitamins B1 and B2, a lack of vitamin C in the winter-spring period, as well as calcium and magnesium deficit have been revealed. . The qualitative characteristics of the diet of cyclists in different seasons of the annual training session does not meet the physiological needs of the organism. Optimization of athletes' nutrition in terms of calorie content and chemical composition must be carried out taking into account the nature and methods of the training cycle, which have significant differences in the energy orientation of the loads and daily energy expenditures.
精英运动中特殊表现的提升需要在年度训练周期的各个阶段优化机体的代谢参数。在这方面,考虑到一年中不同季节训练负荷的能量消耗,分析运动员实际营养的充足性是很有必要的。本研究的目的是分析年度训练周期不同季节阶段运动员饮食中主要和必需成分的整体充足性与平衡性。对20名高素质的公路自行车运动员(平均年龄22.4±0.7岁)进行了检查。测定了受试者的个体能量消耗,通过24小时饮食回顾法研究了运动员的实际营养情况。在一年中的不同季节,在训练营的条件下,对5年期间1540份运动员饮食进行了分析。使用自行开发的“FP Diet”自动化系统对能量平衡和实际营养的充足性进行了研究。公路自行车运动员在年度训练周期不同阶段的平均每日能量消耗在4503±69至4646±88千卡之间,这表明运动员属于能量消耗较大的运动项目之一。热量摄入实际上满足了平均每日能量消耗,然而,充足性综合指标的低值(冬春季节为43.2%,夏秋季节为60.0%)表明实际饮食中主要和必需营养素存在显著失衡,在维生素和脂肪酸组中尤为明显。在植物油摄入不足导致饮食中缺乏单不饱和脂肪酸的背景下,发现饱和脂肪酸摄入过多、维生素B1和B2缺乏、冬春季节维生素C缺乏以及钙和镁不足。年度训练期间不同季节自行车运动员饮食的质量特征不符合机体的生理需求。必须根据训练周期的性质和方法对运动员的营养进行热量和化学成分方面的优化,因为训练周期在负荷的能量导向和每日能量消耗方面存在显著差异。