Table 2—

Kinetic parameters for V̇o2, HHb, heart rate, and Qm

ControlType 2 diabetic
τo2 (s)34.2 ± 8.243.8 ± 9.6*
τHR (s)45.1 ± 15.951.2 ± 14.1
τ[HHb] (s)10.2 ± 4.48.8 ± 4.8
MRT [HHb] (s)17.8 ± 5.518.5 ± 4.6
τ1 Qm phase 1 (s)6.6 ± 2.85.1 ± 3.2
τ2 Qm phase 2 (s)32.0 ± 9.743.6 ± 12.9*
MRT Qm (s)35.8 ± 10.747.7 ± 14.3*
τo2 (s)34.2 ± 8.243.8 ± 9.6*
  • Data are means ± SD. Refer to text for calculation of τ, τ1, τ2, and MRT. τo2, time constant for o2 kinetics; τHR, time constant for heart rate; τ[HHb], time constant for increase in [HHb]; τ1 Qm, time constant for phase 1 of Qm; τ2 Qm, time constant for phase 2 of Qm.

  • *

    * P < 0.05, type 2 diabetic versus control subjects.