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Figure 3 | BMC Emergency Medicine

Figure 3

From: Impact of physical fitness and biometric data on the quality of external chest compression: a randomised, crossover trial

Figure 3

Average compression depth of nine minutes of external chest compression performed by male participants. A: categorised for lower and higher Body Mass Index (BMI); B: categorised for lower and higher heart rate at 75-watt rowing (HR75). Category BMI: 1 = participants with lower BMI; 2 = participants with higher BMI; Category HR75: 1 = participants with lower HR75; 2 = participants with higher HR75; **: p < 0.05. Data are presented as mean ± standard error of mean. For the definition of lower and higher HR75 and BMI, respectively, please refer to the main text.

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