Effect of the period of resting in elite judo athletes: hematological indices and copper/ zinc-dependent antioxidant capacity
| Autor: | Cyntia Ferreira de Oliveira, Emilson Souza Portella, Astrogildo Vianna de Oliveira Júnior, Josely Correa Koury, Carmen M. Donangelo |
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| Rok vydání: | 2004 |
| Předmět: |
Erythrocyte Indices
Male medicine.medical_specialty Osmosis Erythrocytes Time Factors Endocrinology Diabetes and Metabolism Iron Rest Clinical Biochemistry Population Mean corpuscular hemoglobin Nutritional Status Hematocrit Biochemistry Antioxidants Inorganic Chemistry Internal medicine medicine Humans education Mean corpuscular volume Exercise education.field_of_study Mean corpuscular hemoglobin concentration medicine.diagnostic_test Anthropometry Chemistry Superoxide Dismutase Biochemistry (medical) Erythrocyte fragility Red blood cell distribution width General Medicine Diet Trace Elements Zinc Endocrinology Immunology Metallothionein Hemoglobin Brazil Copper Martial Arts Sports |
| Zdroj: | Biological trace element research. 107(3) |
| ISSN: | 0163-4984 |
| Popis: | The purpose of this study was to evaluate the effect of the resting period on hematological and copper-zinc-dependent antioxidant indices in Brazilian elite judo athletes (n = 7). Venous blood samples were collected after 24-h and 5-d periods of resting following a competition, with an interval of 30 d between collections. Two months prior to and during the study, each athlete received an individualized adequate diet. Body composition was determined at both study periods. The following were analyzed: in whole blood, hemoglobin, hematocrit, red cell count, mean corpuscular volume, mean corpuscular hemoglobin, mean corpuscular hemoglobin concentration, red cell distribution width, and white cell count; in plasma, zinc, copper, iron, ceruloplasmin, and total iron-binding capacity; in erythrocytes, metallothionein, copper/zinc superoxide dismutase, and osmotic fragility. Dietary intake and body composition did not affect the biochemical measurements. A significant reduction in ceruloplasmin and superoxide dismutase activity was found after 5 d compared to 24 h of resting. A significant correlation between erythrocyte metallothionein and red cell distribution width was observed after 24 h of resting (r = -0.83, p = 0.02), whereas positive correlations of metallothionein with hemoglobin, red cell count, and mean corpuscular hemoglobin concentration were observed after 5 d of resting (r >/= 0.76, p |
| Databáze: | OpenAIRE |
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