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[Microelements balance and correction in athletes++ under high muscular load]
Voprosy Pitaniia
|January 1, 1997
Summary
High-qualified sportsmen experienced negative iron, copper, and manganese balance after a 30-km cross-country ski race. Nutritional enrichment helped retain these minerals, but iron supplements increased copper and manganese excretion.
Area of Science:
- Sports Medicine
- Human Physiology
- Nutritional Science
Background:
- Athletes have unique nutritional demands, especially during intense training periods.
- Microcomponent balance is crucial for physiological function and recovery in sportsmen.
- Winter training involves significant physical exertion, potentially altering nutrient metabolism.
Purpose of the Study:
- To investigate the balance of iron, copper, and manganese in elite athletes during winter training.
- To assess the impact of a 30-km cross-country ski race on microcomponent balance.
- To evaluate the effects of nutritional adjustments on microcomponent retention and excretion.
Main Methods:
- Balance studies were conducted on high-qualified adult sportsmen during winter training.
- Nutrient intake and excretion (bowels, kidneys) were monitored.
- Dietary enrichment and iron supplementation were analyzed for their effects.
Main Results:
- A 30-km cross-country race led to a negative balance for iron, copper, and manganese.
- Microcomponent losses through excretion exceeded dietary replenishment post-exercise.
- Dietary enrichment with these microcomponents resulted in their retention in the body.
- Iron supplementation increased the excretion of copper and manganese.
Conclusions:
- Intense physical activity, like a 30-km race, significantly disrupts microcomponent balance in athletes.
- Dietary strategies are essential to prevent microcomponent depletion and support recovery.
- Careful consideration of nutrient interactions, such as iron supplementation effects, is necessary for optimal athlete nutrition.
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