Ischemia/Reperfusion Injury The I/R injury is intended to simulate at the brachial artery a condition similar to coronary lesion resulting from infarction after reperfusion. This experiment will be performed 30 min after the measurement of FMD-2, positioning a pneumatic cuff at level of brachial artery, inflating it to 200 mmHg for 15 minutes. After this period of ischemia, the cuff is deflated and is subsequently performed the brachial reactivity test. This ischemia period is safe, as shown in other studies.