Swimming of pregnant rats at different water temperatures

Swimming of pregnant rats at different water temperatures

Author Osorio, Rodrigo Alexis Lazo Autor UNIFESP Google Scholar
Silveira, Vera Lucia Flor Autor UNIFESP Google Scholar
Maldjian, S. Autor UNIFESP Google Scholar
Morales Junior, A. Autor UNIFESP Google Scholar
Christofani, Junia Scarlatelli Autor UNIFESP Google Scholar
Russo, Adriana Kowalesky Autor UNIFESP Google Scholar
Silva, Antonio Carlos da Autor UNIFESP Google Scholar
Piçarro, Ivan da Cruz Autor UNIFESP Google Scholar
Institution Universidade Federal de São Paulo (UNIFESP)
Univ Vale Paraiba
Abstract We studied the chronic effect of exercise during water immersion, associated with thermal stress (water temperature at 22, 35 and 40 degreesC) at an intensity of 80% of maximal work load supported in pregnant rats (P) and non-pregnant female rats (NP). P and NP were subdivided into three subgroups according to water temperature during exercise (P22 and NP22; P35 and NP35; P40 and NP40). the animals were submitted to daily swimming sessions of 10-15 min, for 19 days of pregnancy (P) or experimental conditions (NP). Plasma concentration of triglycerides, cholesterol, glucose, total protein, albumin and corticosterone were determined 24 h after the last exercise session. Weight gain and rectal temperature pre- and post-swimming session were also determined. the offspring were examined just after caesarian section on the 20th day of pregnancy to check weight, length and litter size. Pregnant rats showed an increase of triglycerides, reduction of glycemia, total protein and albumin and cholesterol (at 35 degreesC) when compared to non-pregnant animals. Such effects probably lead to an adequate delivery of substrate to the fetus and prepare the mother for lactation. Daily thermal stress did not modify metabolic responses to exercise in pregnant rats. Results also show a deleterious effect on offspring when the mother is exposed daily to extreme temperatures during swimming. These results suggest that water temperature (cold and hot) in swimming have to be considered to avoid damage in fetal development. (C) 2003 Elsevier Science Inc. All rights reserved.
Keywords Metabolic responses
Glycemic response
Language English
Date 2003-08-01
Published in Comparative Biochemistry and Physiology A-molecular & Integrative Physiology. New York: Elsevier B.V., v. 135, n. 4, p. 605-611, 2003.
ISSN 1095-6433 (Sherpa/Romeo, impact factor)
Publisher Elsevier B.V.
Extent 605-611
Origin https://dx.doi.org/10.1016/S1095-6433(03)00144-2
Access rights Closed access
Type Article
Web of Science ID WOS:000184596000010
URI https://repositorio.unifesp.br/handle/11600/27352

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