Change of the liquid-electrolyte balance of the digestive glands under muscle tension and during rehabilitation

About the authors:

Andrey V. Gryaznykh, Dr. Biol. Sci., Senior lecturer of Department of Human
Anatomy and Physiology, Kurgan State University

Aleksander P. Kuznetsov, Dr. Biol. Sci., Professor, Honoured Scientist of the Russian Federation, Head of Human Anatomy and Physiology Department, Kurgan State

Abstract:

We have investigated the shift in balance of the liquid and electrolytic parts in secretion of digestive glands of persons not engaged in sports and sportsmen of high qualification, developing high speed and power qualities, (wrestlers). We employed gastroduodenal sounding and collected biological fluids: saliva, urine, gastric, pancreatic secrets. We studied their volume and electrolyte content. As a model of acute muscle strain we offered a 60-minute bicycle stress load performed at a level of 60-70% of the maximum oxygen consumption. It was revealed that different levels of everyday motor activity influence the electrolyte composition of saliva, gastric and pancreatic juice, which is connected with the adaptation to the effects of physical exercise. We registered redistribution of the volumes of digestive juices and urine in muscle rest time, both in terms of basal secretion and application of duodenum 0.5% solution of hydrochloric acid. It was determined that at high salivation and secretion of pancreatic juice in basal conditions, and at a high level of gastric juice while simultaneous stimulation of the duodenum the values of diuresis are low. During exercise, the concentration of sodium and potassium in the saliva and gastric juice in the surveyed control group was reduced. Such oppression was not registered with the athletes - wrestlers due to adaptability of their bodies to perform physical activities. The concentration of electrolytes in the duodenal contents during exercise increases.

References:

1. Korot'ko, G.F. Sekrecija podzheludochnoj zhelezy [Secretion of Pancreatic Gland].

Moscow: Triada-X, 2002. 224 p. (in Russian).

2. Korot'ko, G.F. Zheludochnoe pishhevarenie [Gastric Digestion]. Krasnodar, 2007.

256 p. (in Russian).

3. Korot'ko, G.F. Pishhevarenie — estestvennaja tehnologija [Digestion as a Natural

Technology]. Krasnodar, 2010. 304 p. (in Russian).

4. Kuznecov, A.P., Rechkalov, A.V., Smelysheva, L.N. Zheludochno-kishechnyj trakt i

stress [Digestive Tract and Stress]. Kurgan: Kurganskij gosudarstvennyj universitet publ.,

2004. 254 p. (in Russian).

5. Kuznecov, A.P., Smelysheva, L.N., Sazhina, N.V. Fermentative Interrelations of

Digestive Glands in Muscular and Emotional Tension. Vestnik Kurganskogo gosudarstvennogo

universiteta — Herald of Kurgan University. 2008. № 1. Pp. 29-36 (in Russian).

6. Grjaznyh, A.V. Vosstanovlenie sekrecii pishhevaritel'nyh zhelez posle myshechnoj

nagruzki. Kurgan: Kurganskij gosudarstvennyj universitet publ., 2010. 188 p. (in Russian).

7. Maughan, R.J., Harries, M., Williams, C., Stanish, W.D., Micheli, L.L. Fluid and

electrolyte loss and replacement in exercise. Oxford Textbook of Sports Medicine. Oxford

University Press, New York. 1994. P. 82-93.

8. Whiting, S.J., Barabash, W.A. Dietary reference intakes for micronutrients:

considerations for physical activity. Appl. Physiol. Nutr. Metab. 2006. P. 80-85.

9. Duvillard, S.P. Von, Broun, W.A., Markofski, M., Beneke, R.. Fluids and hydration in

prolonged endurance performance. Nutrition. 2004. P. 651-656.

10. Korot'ko, G.F., Abljazov, A.A. Differentiation of Excretory Reactions of the Stomach,

Duodenum and Pancreatic Gland to Various Breakfast Samples. Fiziologija cheloveka —

Human Physiology. 1993. Vol. 19. № 3. Pp. 135-140 (in Russian).