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Related Experiment Videos

Triathlete characterization and response to prolonged strenuous competition.

R G Holly, R J Barnard, M Rosenthal

    Medicine and Science in Sports and Exercise
    |February 1, 1986
    PubMed
    Summary

    Elite triathletes exhibit superior physiological characteristics and increased training volume. Intense competition significantly impacts liver enzymes and metabolic markers, with some returning to normal while others remain altered post-event.

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    Area of Science:

    • Sports Science
    • Exercise Physiology
    • Biochemistry

    Background:

    • Triathletes undergo extreme physiological stress during endurance events.
    • Understanding the physiological profile and metabolic responses of elite athletes is crucial for performance optimization and recovery strategies.

    Purpose of the Study:

    • To characterize the physiological attributes of elite triathletes.
    • To assess the acute and short-term metabolic and enzymatic responses to prolonged, strenuous triathlon competition.

    Main Methods:

    • Physiological testing including V0(2)max and body fat percentage measurement.
    • Training volume and dietary intake assessment in the pre-competition phase.
    • Biochemical analysis of blood markers (liver enzymes, glucose, lipids, fatty acids) immediately post-competition and 5-6 days later.

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    Main Results:

    • Top-performing male triathletes demonstrated higher V0(2)max and lower body fat percentage compared to other participants.
    • Pre-competition training volume was significantly higher in top performers.
    • Competition caused substantial increases in liver enzymes (SGOT, SGPT, LDH) and metabolic substrates (glucose, glycerol, nonesterified fatty acids), with some markers showing persistent alterations post-event.

    Conclusions:

    • Elite triathletes possess distinct physiological profiles optimized for endurance performance.
    • Prolonged triathlon competition induces significant, albeit temporary, physiological and metabolic disturbances.
    • Recovery monitoring is essential, as certain biochemical markers remain altered days after the event.