Fig. 1
From: No influence of lower leg heating on central arterial pulse pressure in young men
Sample of simultaneous recordings of electrocardiogram (ECG), phonocardiogram (PCG) and arterial pressure waveforms at carotid (CAP), brachial (BAP), femoral (FAP), and posterior–tibial (PAP) arteries by an automated polygraph apparatus. Each box above the carotid arterial waveform indicates the location of tonometry sensor which detected the strongest pressure (black bar) among 15 sensors