The impact of physical exertion and man-made environmental factors on lymphoid organs

Abstract

The athletes' body is exposed not only to intense physical exertion, but also to man–made environmental factors - transport and industrial noise, of which infrasound is an integral part. Infrasound affects the structure of the vascular wall, causing disorders of lymph flow. Intense physical activity is accompanied by adaptive reactions of the body, including the organs of the immune system. The effect of infrasound on the structure of lymph nodes during the recovery period after intense physical exertion was studied. An experimental study was conducted on mesenteric lymph nodes of white rats in the recovery period after intense physical exertion (swimming); the first group of experimental animals underwent a recovery period under normal conditions of detention, the second was exposed to infrasound for 2 weeks after the end of physical exertion. Compensatory reactions are manifested by an increase in the content of tissue basophils in the lymph nodes, markedly pronounced in the second week of the recovery period. The impact of infrasound leads to a violation of lymph flow, which is accompanied by a violation of migration processes in the lymph nodes. Against the background of a decrease in lymphocyte migration, the suppression of lymphopoiesis is sharply pronounced, which is determined throughout the entire observation period. The mast cell reaction in this group of experimental animals is observed only in the fourth week of the recovery period, when the phenomena of oedema begin to subside, and is much less pronounced.