Body fat in children and adolescents participating in organized sports: Descriptive epidemiological study of 6048 Latvian athletes

Kalnina, Liga; Sauka, Melita; Timpka, Toomas; Dahlström, Örjan; Nylander, Eva; Selga, Guntars; Ligere, Renāte; Kārkliņa, Helena; Priedite, Ilga S.; Lāriņš, Viesturs

doi:10.1177/1403494815581696

Cited by 11 publications

(12 citation statements)

References 26 publications

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“…This tendency is more pronounced in group 1. The results are closely correlated with results of Kalnina et al [6]. In our opinion, this illustrates the effect of intense physical loads on the body.…”

Section: Discussionsupporting

confidence: 91%

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Analysis of the physical development and somatotype of girls and females involved into dancing and gymnastic sports

Podrіgalo

Artemieva

Rovnaya

et al. 2018

PES

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Purpose: the comparative analysis of the physical development and somatotype of girls and females involved in dancing and gymnastic sports (acrobatic rock and roll, sports aerobics) Material: The study involved 45 girls and females. Group 1 - acrobatic rock and roll (n = 25, age - 13.00 ± 0.41 years); Group 2 - sports aerobics (n = 20, age - 19.70 ± 0.59 years). It was determined the length and body weight. It was evaluated the level and harmony of physical development. The bioimpedance method was applied to determine the composition of muscle and fat tissue, the level of visceral fat. It was evaluated the body mass index, water composition in the body. The results are evaluated by applying parametric and non-parametric statistical indicators. Results: the average level of physical development dominates in athletes. Its specific gravity is: group 1 - (64.00 ± 9.60)%; group 2 - (50 ± 11.18)%. Rather high prevalence of the level below the average: group 1 - (20.00 ± 8.00)%; group 2 - (25.00 ± 9.68)%. The proportion of athletes with harmonious development was: group 1 - (64.00 ± 9.60)%; group 2 - (50.00 ± 11.18)%. The disharmony of physical development due to overweight: group 1 - (20.00 ± 8.00)%; group 2 - (30.00 ± 10.25)%. The disharmony of development due to underweight: group 1 - (16.00 ± 7.33)%; group 2 - (20.00 ± 8.94)%. The average values of fat tissue reflect its normal composition in both groups. In group 1, was determined the normal for the age fat composition in (52.00 ± 9.99)%; low level of fat had (48.00 ± 9.99)%. In group 2, the normal fat composition was found in (75.00 ± 9.68)%. The increased fat composition was (15.00 ± 7.98)% of female athletes. The reduced fat composition was (10.00 ± 7.61)% of female athletes. The level of visceral fat in athletes of group 2 was within the age norm. Female athletes of group 1 were characterized by virtually no visceral fat. The specific gravity of muscle tissue in all athletes was above the average for this age group. Group water composition in both groups was average. Conclusions: Most athletes have an average harmonious physical development. Deviations of physical development are most often associated with underweight. It is determined the increase in the composition of muscle mass above the average age standards for all female athletes. The composition of fat tissue in 52% of female athletes of the younger group corresponded to the average value. The rest of the athletes had a fat composition below normal. In the older group: 75% of athletes had an average fat composition; 15% of athletes had a reduced fat composition; 10% of athletes had a high fat composition. It was determined the significant differences between groups. The female athletes of group 1 had smaller values of body length, body weight, the specific gravity of fat tissue and visceral fat, body water composition, and body mass index. Females of group 1 had a big specific gravity of muscle tissue. The application of the bioimpedance method has significantly expanded the data obtained in the analysis of anthropometric indicators and indices. This method can be recommended for monitoring the functional condition of athletes dancing and gymnastic sports.

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Section: Discussionsupporting

confidence: 91%

“…BIVA is a new technique which has potential in sports and physical exercise. Kalnina et al [6] confirmed the suitability of the bioimpedance method for population studies. Every fifth child in the sport has a reduced level of body fat.…”

Section: Introductionmentioning

confidence: 91%

Analysis of the physical development and somatotype of girls and females involved into dancing and gymnastic sports

Podrіgalo

Artemieva

Rovnaya

et al. 2018

PES

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“…These results differed significantly between the study groups (p £ 0.001). According to the National Scale, %BF for the respective age in young athletes (Kalnina et al, 2015) Intake of minerals and vitamins. The mean of daily intake of minerals and vitamins are shown in Tables 3 and 4.…”

Section: Resultsmentioning

confidence: 99%

Comparison of Body Composition and Energy Intake of Young Female Ballet Dancers and Ordinary School Girls

Kalnina

Selga

Sauka

et al. 2017

Proceedings of the Latvian Academy of Sciences. Section B. Natural, Exact, and Applied Sciences.

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“…Нормы по содержанию жировой массы сравнивали с данными зарубежных исследо-ваний, проведенных с использованием биоим-пендансного анализа в популяции детей и под-ростков, занимающихся и не занимающихся спортом [8,9].…”

Section: материалы и методыunclassified

“…2, 3). В то же время при исполь-зовании норм для детей-спортсменов дефицит жировой массы был выявлен лишь у 5 % в воз-расте 12 лет, у 47 % в возрасте 13 лет и у 10 % [9,[5][6][7][8][9][10][11][12][13][14][15][16]9] 31,9 [30,9] 41,3 [40, 4] в возрасте 15 лет и старше. Данные изменения во многом были связаны с резким скачком ро-ста и увеличением количества мышечной массы 14-15 лет (см.…”

Section: результатыunclassified

The evaluation of the physical characteristics of young football players

Turusheva

Gora

Rasmagina

et al. 2018

Rossiĭskiĭ semeĭnyĭ vrach

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ФГБОУ ВО «Северо-Западный государственный медицинский университет имени И.И. Мечникова» Минздрава России, Санкт-Петербург, Россия © Коллектив авторов, 2018Введение. Регулярные занятия футболом накладывают свой отпечаток на физическое развитие де-тей. Целью нашей работы было проведение анализа физического развития подростков, занимающихся футболом, с использованием региональных оценочных таблиц и Международного стандарта ВОЗ.Методы. Методом сплошной выборки было отобрано 64 воспитанника спортивной футбольной школы 2002-2005 года рождения. Основные оцениваемые параметры: рост, масса тела, индекс массы тела (ИМТ), содержание жировой, безжировой, мышечной массы и воды в организме. Сравнительный анализ полученных данных проводили с использованием региональных оценочных таблиц и Междуна-родного стандарта ВОЗ Результаты. Участники исследования были выше, имели более высокий ИМТ, но меньше жировой массы по сравнению с общепопуляционными нормами. В зависимости от использованного метода под-ростки были отнесены к разным центильным группам по росту, массе тела, ИМТ и процентному содер-жанию жира. Коэффициент корреляции согласованности КАРРА для роста согласно классификации ВОЗ и данным по Санкт-Петербургу в возрасте 12 лет составлял 0,17; в 13 лет -0,56; в 14 лет -0,75; в 15 лет и старше -0. В соответствии с общепопуляционными нормами по массе тела и ИМТ доля детей с нормальными или повышенными значениями составляла от 90 до 100 %, при этом дефицит жи-ровой массы в возрасте 13 лет был диагностирован в 30 % случаев, в возрасте 14 лет -в 50 % случаев, в возрасте 15-16 лет -в 100 % случаев. При использовании норм для детей-спортсменов дефицит жировой массы был выявлен лишь у 5 % в возрасте 12 лет, у 47 % в возрасте 13 лет и у 10 % в воз-расте 15 лет и старше.Выводы. Занятия футболом способствуют изменению пропорций тела, уменьшению жировой и уве-личению мышечной массы в организме подростков. Следовательно, для оценки физического развития подростков, занимающихся спортом, необходимо оценивать не только рост и ИМТ, но и процентное содержание жировой и мышечной массы. Использование общепопуляционных норм для оценки физиче-ского развития данной категории подростков может приводить к гипо-и гипердиагностике избыточного и недостаточного питания.Ключевые слова: физическое развитие; рост; вес; ИМТ; жировая масса; мышечная масса; подрост-ки; спорт. Introduction. Regular physical activity impacts on growth, development and health of children and adolescents. This study has been conducted with the aim of evaluating the physical characteristics of adolescents, who play football using the regional and WHO normative data. THE EVALUATION OF THE PHYSICAL CHARACTERISTICS OF YOUNG FOOTBALL PLAYERSMethods. Сomplete sample of 64 adolescents borned in 2002-2005 from the football sport school were assessed. Main study parameters: height, body mass, BMI, fat mass, skeletal muscle mass fat free mass and water. Comparison analysis was performed using the regional and WHO normative data.Results. Participants of the present study was higher and heavier...

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Body fat in children and adolescents participating in organized sports: Descriptive epidemiological study of 6048 Latvian athletes

Abstract: Almost every fifth child and adolescent participating in organized sports displayed critically low body fat levels. Body fat needs to be assessed regularly in young athletes, to prevent negative consequences on health.

Cited by 11 publications

References 26 publications

Analysis of the physical development and somatotype of girls and females involved into dancing and gymnastic sports

Analysis of the physical development and somatotype of girls and females involved into dancing and gymnastic sports

Comparison of Body Composition and Energy Intake of Young Female Ballet Dancers and Ordinary School Girls

The evaluation of the physical characteristics of young football players

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