Trial Parameters
Brief Summary
The purpose of this study is to unveil the mechanistic benefits of a bout of postpartum maternal exercise on infant health that are provided by breastmilk.
Eligibility Criteria
Exclusion Criteria: * Active coronary artery disease or heart failure. * Participation in a structured exercise program ≥ 1 day/week in the "inactive" subcohort or \< 3 days per week in the "active" subcohort. * A known medical condition that in the judgment of the investigator might interfere with the completion of the protocol such as the following examples: * Abnormal liver function test results (Transaminase \>2 times the upper limit of normal * Abnormal renal function test results (calculated GFR \<60 mL/min/1.73m2); * If on antihypertensive, thyroid, anti-depressant or lipid lowering medication, lack of stability on the medication for the past 2 months prior to enrollment in the study * Uncontrolled thyroid disease (TSH undetectable or \>10 mlU/L); testing required within three months prior to admission for subjects with a goiter, positive antibodies, or who are on thyroid hormone replacement, and within one year otherwise * Abuse of alcohol or recreational drugs * Active tobacco