In this video, my PhD student Tomos Jones talks through the steps that are neccessary to record brachial artery diameters during the FMD technique. A video tutorial about performing the actual technique can be found here: https://youtu.be/YlFvcp65cwE?list=PL5uUAqtRHMyM2ctKHRYxeovzYooDXssRD The analysis of FMD data using border-detection software can be found here: https://youtu.be/6I5rB8xd4-Q