Key result
Photoplethysmography (PPG) signal variations correlated with respiration, with the period of the pulse showing the strongest correlation in women and in men at respiratory rates <10 breaths/min.
Observational (n=28)
Different PPG-derived parameters correlate best with respiration depending on sex, respiratory rate, and posture, which may inform the development of PPG-based respiratory monitoring algorithms.
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Amplitude of diastole correlates more strongly with respiration than systole; extends PPG feature analysis but leaves clinical adoption open.
Jin et al. (2010) conducted an observational in Healthy (n=28). Photoplethysmography (PPG) signals was evaluated on Correlations between respiratory-induced variations extracted from PPG and simultaneous respiratory signals. Photoplethysmography (PPG) signal variations correlated with respiration, with the period of the pulse showing the strongest correlation in women and in men at respiratory rates <10 breaths/min.
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