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J Appl Physiol 58: 1453-1458, 1985;
8750-7587/85 $5.00
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Journal of Applied Physiology, Vol 58, Issue 5 1453-1458, Copyright © 1985 by American Physiological Society

ARTICLES

Exercise-induced changes in blood zinc and related proteins in humans

H. Ohno, K. Yamashita, R. Doi, K. Yamamura, T. Kondo and N. Taniguchi

Effects of cycle ergometer exercise (approximately 75% maximum ventilatory O2 consumption for 30 min) on the concentrations of zinc and related proteins in erythrocytes and/or plasma were studied on 11 sedentary male students. Lower concentrations of total zinc and of zinc derived from carbonic anhydrase I type (CA-I) in erythrocytes were observed immediately after exercise, but they disappeared after 30 min of rest. The change in total zinc concentration in erythrocytes correlated well with that in CA-I concentration immediately after exercise, as well as after rest. The concentration of carbonic anhydrase II type (CA-II)-derived zinc did not vary substantially at any time. On the other hand, there were significant increases in the plasma concentrations of total zinc and of alpha 2-macroglobulin (alpha 2-MG)-bound zinc immediately after exercise, whereas no such effect was noted in albumin-bound zinc. A positive correlation was found between total zinc and alpha 2-MG concentrations in plasma immediately after exercise. In addition, the change in the activity of alkaline phosphatase, a zinc metalloenzyme, correlated well with that in the total zinc concentration in plasma. These results suggest that a brief physical exercise induces the movement of zinc into plasma.


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 Br. J. Sports. Med.Home page
S. L. Volpe, N. M Lowe, L. R Woodhouse, and J. C King
Effect of maximal exercise on the short-term kinetics of zinc metabolism in sedentary men
Br. J. Sports Med., March 1, 2007; 41(3): 156 - 161.
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