Inclusion Criteria:  Men and women with PAD 6 months post diagnosis. Ankle-brachial pressure index <0.9. People physically able to perform leg press and leg extension resistance exercise.  Exclusion Criteria:  Ankle-brachial pressure index >0.89. People unable to visit the laboratory twice weekly for exercise sessions. People unable to do leg press and leg extension exercise. People whose walking is limited by a non-PAD condition. People with PAD with critical limb ischemia (including symptoms of pain at rest and skin ulcers). People with Dementia. People who have had major surgery or myocardial infarction within the past 6 months. Previous stroke. Previous thrombosis. People who have major surgery scheduled during the intervention period.