This is not a very specific question, more so I am looking for expertise in the area of ultrasound techniques to assess vascular kinematics. My main use for this technique would be to evaluate differences in muscular contractions, between conditions and populations. I am just unfamiliar with the techniques and am reaching out to anyone who may have experience or have come across articles with explanations about the collection and analysis of such procedures. Any input in this are or arterial stiffness would be greatly appreciated. Even if it is just direction to the probe type needed.