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Iron Status in Ultraendurance Triathletes.

M L O'Toole, H Iwane, P S Douglas

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    |July 15, 2016
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    Summary
    This summary is machine-generated.

    Assessing iron status in ultraendurance athletes requires multiple hematologic indexes. Some athletes may show abnormal iron values that do not indicate true iron deficiency, highlighting the need for comprehensive testing.

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    Area of Science:

    • Sports Medicine
    • Hematology
    • Nutritional Science

    Background:

    • Ultraendurance athletes undergo significant physiological stress.
    • Iron status is crucial for athletic performance and health.
    • Previous assessments may have oversimplified iron status evaluation in athletes.

    Purpose of the Study:

    • To evaluate the iron status of ultraendurance athletes using multiple hematologic markers.
    • To determine the prevalence of suboptimal iron indices in this population.
    • To differentiate between true iron deficiency and other causes of abnormal iron markers.

    Main Methods:

    • Analysis of hematologic indexes in 50 ultraendurance athletes.
    • Participation in the 1988 Ironman Triathlon in Hawaii served as the study cohort.
    • Inclusion of various iron-related parameters beyond just hemoglobin.

    Main Results:

    • Fifteen (30%) of 50 athletes presented with at least one suboptimal iron index.
    • Two athletes showed stage 2 iron deficiency with normal hemoglobin.
    • Other athletes exhibited low transferrin saturation, abnormal total iron-binding capacity, or dilutional anemia.

    Conclusions:

    • Comprehensive assessment using several hematologic indexes is necessary for accurate iron status evaluation in triathletes.
    • Abnormal iron indices in athletes do not always signify true iron deficiency.
    • Further research is needed to understand the specific mechanisms affecting iron status in ultraendurance athletes.