Table 2.

Measures of oxygen consumption at peak exercise, anaerobic threshold, and COT in patients with PAD and control subjects.

	Control (n = 29)	PAD (n = 37)	p-value
Peak VO2 (mL/kg/min)	24.3 ± 5.2	15.7 ± 3.9	< 0.001
% Predicted peak VO2	106.0 ± 19.5	70.5 ± 17.4	< 0.001
VO2 at AT (mL/kg/min)	16.1 ± 2.8	11.5 ± 2.6	< 0.001
% Peak VO2 at AT	67.0 ± 8.1	73.3 ± 7.3	0.001
% Peak heart rate at AT	71.4 ± 6.4	83.1 ± 7.5	< 0.001
VO2 at COT (mL/kg/min)	–	10.6 ± 2.5	N/A
% Peak VO2 at COT	–	67.7 ± 17.3	N/A
Time to claudication (sec)	–	215.1 ± 153.6	N/A
Time after claudication (sec)	–	359.9 ± 204.9	N/A

AT, anaerobic threshold; COT, claudication onset time; N/A, not applicable, PAD, peripheral artery disease; peak VO₂, peak oxygen consumption.