Wearable Technology to Reduce Sedentary Behavior and CVD Risk in Older Adults

Inclusion Criteria:

• Sedentary lifestyle, defined as <150 min/wk of moderate physical activity by CHAMPS questionnaire
• Moderate to high-risk of CHD events according to ATP-III risk classification algorithm
• Willingness to be randomized to either intervention group
• Willingness to participate in all study procedures

Exclusion Criteria:

• Failure to provide informed consent;
• Regular participation in an exercise training program within the last 3 months
• Absolute contraindication(s) to exercise training (American College of Sports Medicine guidelines)
• Office SBP > 180 mm Hg or DBP > 110 mm Hg
• Severe cardiac disease, i.e. NYHA Class III or IV congestive heart failure, clinically significant aortic stenosis, history of cardiac arrest, use of a cardiac defibrillator, or uncontrolled angina;
• Myocardial infarction or stroke within past year
• Significant cognitive impairment, i.e. known dementia or a Mini-Mental State Examination score < 24
• Progressive, degenerative neurologic disease, e.g., Parkinson's Disease, multiple sclerosis, ALS;
• Severe rheumatologic/orthopedic disease, e.g., awaiting joint replacement, active inflammatory disease
• Severe pulmonary disease, requiring either steroid pills or injections or the use of supplemental oxygen;
• Hip fracture, hip or knee replacement, or spinal surgery within past 4 months;
• Other significant co-morbid conditions that would impair ability to participate in the intervention
• Simultaneous participation in another intervention trial