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Fig. 1 | BioMedical Engineering OnLine

Fig. 1

From: Developing a kinematic understanding of chest compressions: the impact of depth and release time on blood flow during cardiopulmonary resuscitation

Fig. 1

Schematic of the data analysis process. The process is illustrated here using aortic pressure data, but this process was applied to all data streams. Briefly, at the initiation of analysis the locations of the transitions from one chest compression waveform to another were determined (Step 1) and the locations of the chest compression maxima were determined (Step 2). Once the waveform transitions and chest compression locations were determined, those locations were used to segment data into values per chest compression (Step 3) and five average values (approximately 20 s of data) per epoch (Step 4). Step 1 and Step 2 were typically completed on the aortic pressure or the venous pressure data channel. Steps 3 and 4 were completed on all data channels

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