Table 2.

Parameter values

Mean ± SDRange
DF index
    IVRT, ms71±1638–97
    τ, ms53±1531–82
        r2 for τ regression0.987±0.0010.962–0.997
    DT, ms194±41134–293
Model parameters
    c, 1/s21.1±7.59.3–37.5
    k, 1/s2200±5570–296
    x0, cm10.9±3.26.5–17.9
    kx0, cm/s22078±677710–3679
  • IVRT, isovolumetric relaxation time; τ, isovolumetric relaxation time constant; DT, deceleration time; c, damping constant; k, spring constant; x0, initial spring displacement; DF, diastolic function.