Why the study?
Does finger plethysmograph provide accurate heart rate variability measurements compared to ECG in healthy subjects?
Population
26 healthy subjects (16 in Experiment 1, 10 in Experiment 2)
Comparison
Finger plethysmograph (FP) vs Electrocardiogram (ECG)
Design
Cross-sectional
Authors
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FP may suffice for resting HRV but not during cognitive stress; leaves open validation in patients and other conditions.
Does finger plethysmograph provide accurate heart rate variability measurements compared to ECG in healthy subjects?
Finger plethysmography may be adequate for resting HRV measurement but is less reliable than ECG during cognitive stress tasks.
Giardino et al. (2002) studied this question.
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