. Author manuscript; available in PMC: 2020 Sep 19.

Published in final edited form as: J Vasc Surg. 2019 Aug 21;71(3):946–957. doi: 10.1016/j.jvs.2019.04.493

Table V.

Correlations of exercise and recovery variables to measures of walking impairment

	Six-minute walking distance	PWT

Maximum resting ABI	0.17	0.12
Minimum stress ABI	0.26	0.33^a
Absolute StO₂ change at 1 minute	−0.67^b	−0.72^b
Percent StO₂ change at 1 minute	−0.67^b	−0.76^b
COT	0.44^a	0.70^b
Absolute StO₂ change at COT	−0.55^b	−0.70^b
Percent StO₂ change at COT	−0.57^b	−0.75^b
PWT	0.58^b	—
Absolute StO₂ change at PWT	−0.31	−0.51^b
Percent StO₂ change at PWT	−0.34	−0.59^b
Time to minimum StO₂	0.70^b	0.79^b
Absolute StO₂ change at exercise minimum	−0.36^a	−0.46^c
Percent StO₂ change at exercise minimum	−0.43^a	−0.61^b
Time to 50% recovery	−0.23	−0.53^b
Time to 100% recovery	−0.29	−0.52^b
Time to recovery maximum StO₂	−0.08	0.03
Absolute StO₂ change at recovery maximum	0.01	0.19
Percent StO₂ change at recovery maximum	0.03	0.19

COT, Claudication onset time; PWT, peak walking time; StO₂, oxygen saturation.

P < .05.

P < .001.

P < .01.