An analysis of deviations from international standards of physique development in male youngsters from the former aral sea region

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Abstract


Introduction. According to the commonly accepted classification, geographical division of the Southern Near-Aral region (Karakalpakstan, Republic of Uzbekistan) is determined by the distance from the epicenter of the formal Aral Sea ecological disaster. The physique development was compared in male youngsters living in “Zone No. 1” (critical), “Zone No. 2” (stable) and “Zone No. 3” (normal). The aim was a comparison of body length and mass in male youngsters up to 17 years old living in all three zones.

Material and methods. Total body length and mass were studied in 320 male volunteers, age 17–19. Z-index of body length and body mass index (BMI) were estimated according to the standards of WHO Growth Reference, 2007. Batch-to-batch variations were studied with Kruskal–Wallis test, and Mann–Whitney criterion including Bonferroni correction for multiple comparison. Categorical features were compared using Fisher’s exact test for 3×3 contingency tables with calculating the proportion of children with one or another deviation in body weight. The results were considered statistically significant at p < 0.05.

Results. Subjects from Zone 1 possessed significantly lower valued of BMI and Z-index. The incidence of Z-index values lower than mean (less –1 SD) were significantly higher in Zone 1 (critical).

Conclusion. The results may be explained by via chemical pollution of the environment by the endocrine-disrupting chemicals in the critical zone of the Aral See region ecological disaster and can be implied for the health monitoring of the local population.


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About the authors

Valerii O. Yerkudov

St. Petersburg State Pediatric Medical University

Author for correspondence.
Email: verkudov@gmail.com

Russian Federation, Saint Petersburg

MD, PhD, Senior Lecturer, Department of Human Physiology

Andrey P. Pugovkin

St. Petersburg State Pediatric Medical University

Email: apugovkin@mail.ru

Russian Federation, Saint Petersburg

PhD, Dr. Sci. (Biol.), Senior Researcher, Professor of the Department of Human Physiology

Azat T. Matchanov

Karakalpak Berdakh State University

Email: Matchanovazat@gmail.com

Uzbekistan, Nukus

PhD, Dr. Sci. (Biol.), Head of Department of General Biology and Physiology

Kenzhabek U. Rozumbetov

Karakalpak Berdakh State University

Email: rozumbetov96@mail.ru

Uzbekistan, Nukus

Undergraduate Student, Department of General Biology and Physiology

Ruslan K. Dauletov

Karakalpak Berdakh State University

Email: ruslnaagusha2505@gmail.com

Uzbekistan, Nukus

5rd year Student

Sergej S. Rogozin

St. Petersburg State Pediatric Medical University, Saint Petersburg

Email: box.rogozin@yandex.ru

Russian Federation, Saint Petersburg

Senior Laboratory Assistant, Department of Human Physiology

Maria A. Pakhomova

St. Petersburg State Pediatric Medical University

Email: mariya.pahomova@mail.ru

Russian Federation, Saint Petersburg

MD, Senior Researcher, Research Center

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Copyright (c) 2020 Yerkudov V.O., Pugovkin A.P., Matchanov A.T., Rozumbetov K.U., Dauletov R.K., Rogozin S.S., Pakhomova M.A.

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