Table 1.

Inclusion and Exclusion Criteria

Criteria
Inclusion	Exclusion
Age ≥ 40 year old	No primary care provider
Diagnosis lower extremity PAD*	Life expectancy under 1 year
Able to walk at least 1 block	Co-morbidities which limit physical activity to a severe degree+
Are sedentary (defined as self-reported PA of < 150 minutes per week)	Signs of critical limb ischemia and/or planned revascularization in the next 12-months
Medical clearance from primary care provider	Recent or current enrollment in formal exercise program
Competent to give informed consent	Recent CVD events (< 3 months) including stroke/TIA, MI, UA, PCI/CABG, or severe valve disease, congenital HD, complex arrhythmias (untreated), NYHA class III–IV HF
Must be a regular email user	Current substance abuse
Have access to a computer with internet connection, a USB port and Windows operating platform	Psychiatric disorder#
	Pregnancy
	Non-English speaking

^*PAD = peripheral arterial disease with a documented ankle brachial index of < 0.9 or documentation via imaging (MRI or CT scan, or angiogram);

⁺inability to walk one city block;

^#a psychiatric disorder (including severe depression, psychosis, or dementia) which limits the patient’s ability to follow the study protocol; PA= physical activity, CVD =cardiovascular disease, TIA = transient ischemic stroke, MI = myocardial infarction, UA = unstable angina, HD = heart disease, NYHA = New York Heart Association, HF = heart failure