A Feasibility Study for Measuring Accurate Chest Compression Depth and Rate on Soft Surfaces Using Two Accelerometers and Spectral Analysis

<div>Distribution of the error in depth depending on the mattress/backboard combination. Tested mattresses were foam and sprung (Spr.) The use of a backboard is indicated with + b in the boxplot.</div>

BioMed Research International

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Figure 4

Figure 4: A Feasibility Study for Measuring Accurate Chest Compression Depth and Rate on Soft Surfaces Using Two Accelerometers and Spectral Analysis 

Figure 4 | A Feasibility Study for Measuring Accurate Chest Compression Depth and Rate on Soft Surfaces Using Two Accelerometers and Spectral Analysis 