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Left ventricular diastolic function in weight lifters.

A C Pearson, M Schiff, D Mrosek

    The American Journal of Cardiology
    |December 1, 1986
    PubMed
    Summary
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    Weightlifters show increased left ventricular (LV) mass but maintain normal diastolic filling patterns. This suggests athletic adaptations, not pathological changes, in their hearts.

    Area of Science:

    • Cardiology
    • Sports Medicine
    • Echocardiography

    Background:

    • Weightlifters can develop left ventricular (LV) hypertrophy.
    • Diastolic filling is often impaired in pathological LV hypertrophy.
    • Diastolic function in weightlifters remains understudied.

    Purpose of the Study:

    • To investigate diastolic filling in competitive weightlifters.
    • To compare weightlifters' diastolic function with age-matched controls.
    • To assess if LV hypertrophy in weightlifters affects diastolic filling.

    Main Methods:

    • Pulsed Doppler of LV inflow and echocardiography (M-mode, 2D).
    • Measurement of peak and mean filling rates, rapid filling index, and flow velocity integrals.
    • Calculation of LV mass and LV mass index.

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    Main Results:

    • Weightlifters exhibited significantly higher LV mass and LV mass index compared to controls.
    • No significant differences were found in rapid filling index, early to late integral ratio, or ejection fraction.
    • LV end-diastolic volume, dimension, and posterior wall thickness were higher in weightlifters but normalized after body surface area correction.

    Conclusions:

    • Competitive weightlifters demonstrate increased left ventricular mass.
    • Despite LV hypertrophy, weightlifters maintain normal diastolic filling patterns.
    • These findings suggest physiological adaptation rather than pathological changes in the weightlifter's heart.