Figure 6From: A counterbalanced cross-over study of the effects of visual, auditory and no feedback on performance measures in a simulated cardiopulmonary resuscitation Lactate concentration in blood during 10 minutes of CPR with and without feedback (Mean ± SE). a Audio feedback produced lower lactate concentrations than did either visual or no feedback (p < 0.05). b Pre-CPR lactate level were less than Post-CPR and Post 5 minutes CPR (p < 0.05). c Post-CPR lactate levels were greater than Post 5 minutes CPR (p < 0.05).Back to article page