(Originals)Changes in Leukocytes after Eccentric Exercise of the Elbow Flexors

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概要

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• NOSAKA, K. and SAKAMOTO, K., Changes in Leukocytes after Eccentric Exercise of the Elbow Flexors. Adv. Exerc. Sports Physiol., Vol.6, No.2 pp59-65, 2000. This study investigated the relationship between changes in circulating numbers of leukocytes and muscle damage after 24 maximal eccentric actions of the elbow flexors. Blood samples and criterion measurements were taken immediately before and after and 2, 4, 6, 8, 12, 24, 36, 48, 60, 72, 96, and 120 h after exercise from eight non-resistance trained, male students. The number of leukocytes (neutrophil, lymphocyte, monocyte, cosinophil, basophil), erythrocytes, and platelets and hematocrit were analyzed by a hematology analyzer. Plasma samples were used to determine creatine kinase activity, myoglobin, and C-reactive protein. Maximal isometric force, range of motion, upper arm circumference, mucsle tickness by B-mode ultrasonography, and muscle coreness were measured as indicators of muscle damage. All muscle damage indicators canged significantly (P<0.05) after exercise and suggested that severe muscle damage occurred to the elbow flexors. C-reactive protein, lymphocytes, cosinophils, basophils, erythrocytes, platelets ,and hematocrit ded not change significantly over time. Neutrophils increased significantly (P,0.01) and peaked at 12 h after exercise. Monocyters increased significantly (P<0.05) and peaked at 8 h after exercise. However, the amount of increase in neutrophils (2×109･1-1) and monocytes (0.2×109･1-1) after exercise was small and not necessarily associated with the magnitude of muscle damage.

• 日本運動生理学会の論文

著者

• NOSAKA Kazunori

  Exercise and Sports Science, Graduate School of Integrated Science, Yokohama City University

• Sakamoto Kei

  School Of Biomedical And Sports Science Edith Cowan University

• Nosaka Kazunori

  Exercise And Sports Science Department Of Environmental Science Yokohama City University

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