EurekaMag.com logo
+ Site Statistics
References:
53,214,146
Abstracts:
29,074,682
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

Physical training and copper, iron, and zinc status of swimmers






American Journal of Clinical Nutrition 51(6): 1093-1099

Physical training and copper, iron, and zinc status of swimmers

The influence of physical training on copper, iron, and zinc nutriture was studied before and at the end of a competitive season in 16 female and 13 male swimmers and in 13 female and 15 male nontraining control subjects. Mean daily energy, protein, and carbohydrate intakes increased (p less than 0.05) in the swimmers. Estimated copper, iron, and zinc intakes increased (p less than 0.05) in the male swimmers. Hematocrit and hemoglobin did not change but ferritin increased (p less than 0.05) in male swimmers. Plasma copper, iron, and zinc were within the ranges of normal values and did not change. Erythrocyte superoxide dismutase (SOD) activity increased (p less than 0.01) after training. The findings indicate that copper, iron, and zinc nutriture is not adversely affected by physical training when dietary intakes are adequate, and that increases in red blood cell SOD activity without an increase in dietary copper are a functional adaptation of copper metabolism to aerobic training.

(PDF 0-2 workdays service: $29.90)

Accession: 001909505

PMID: 2349924



Related references

Copper, zinc, and iron status of female swimmers. Nutrition research 9(5): 493-502, 1989

Effects of training on copper status of swimmers. Medicine & Science in Sports & Exercise 20(2 SUPPL): S26, 1988

Changes in serum proteins,-iron and -copper in swimmers before and after altitude training. European Journal of Applied Physiology and Occupational Physiology 35(1): 21-31, 1976

Effects of iron intake through food or supplement on iron status and performance of healthy adolescent swimmers during a training season. International Journal of Sports Medicine 25(4): 306-313, 2004

Response of zinc iron and copper status parameters to supplementation with zinc or zinc and iron in women. Federation Proceedings 45(4): 1081, 1986

Iron, copper, and zinc status: response to supplementation with zinc or zinc and iron in adult females. American Journal of Clinical Nutrition 49(1): 145-150, 1989

Effects of dietary zinc and copper supplementation on growth liver zinc copper and iron status of young sprague dawley male rats. Federation Proceedings 46(3): 596, 1987

Training at moderate altitude: iron status of elite male swimmers. Journal of Laboratory and Clinical Medicine 120(3): 387-391, 1992

High- versus low-meat diets: effects of zinc absorption, iron status, and calcium, copper, iron, magnesium, manganese, nitrogen, phosphorus, and zinc balance in postmenopausal women. American journal of clinical nutrition 62(3): 621-632, 1995

Iron and zinc supplementation improved iron and zinc status, but not physical growth, of apparently healthy, breast-fed infants in rural communities of northeast Thailand. Journal of Nutrition 136(9): 2405-2411, 2006