Hypoxia and Heart Rate Variability

Hypoxia and Heart Rate Variability

The purpose of this study is to evaluate how variations in oxygen demands may change heart electrical activity in individuals with and without oxygen dependence.

Healthy Participants

Inclusion Criteria:

• Ability to provide consent

Exclusion Criteria:

• BMI > 40 kg/m2
• Prevalent myocardial infarction, coronary revascularization, heart failure, and stroke
• Unstable medical conditions that may preclude enrollment in the protocol such as: uncontrolled angina and/or congestive heart failure, uncontrolled blood pressure or resistant hypertension, cancer, and active psychiatric disease (e.g., major depression)

Nocturnal Hypoxemia

Inclusion Criteria:

• Ability to provide consent
• Chronic respiratory condition resting Sat < 95% off oxygen

Exclusion Criteria:

• BMI > 40 kg/m2
• Prevalent myocardial infarction, coronary revascularization, heart failure, and stroke
• Unstable medical conditions that may preclude enrollment in the protocol such as: uncontrolled angina and/or congestive heart failure, uncontrolled blood pressure or resistant hypertension, severe chronic obstructive pulmonary disease, cancer, and active psychiatric disease (e.g., major depression)