Key result
Pulse oximetry accurately estimated arterial oxygen saturation during exercise in healthy subjects, showing strong correlations (r=0.82 to 0.93) and insignificant differences versus CO-oximetry.
Why the study?
Does pulse oximetry accurately estimate arterial oxygen saturation during exercise in healthy subjects compared to direct arterial blood sampling?
Population
10 healthy subjects (4 exercised under hypoxic conditions, 6 under normoxic conditions)
Comparison
Pulse oximetry measurements using Ohmeda 3700… vs Direct arterial blood sampling using a…
Design
Cross-sectional
Authors
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May support pulse oximetry in healthy exercise research; leaves open validation in patients.
Cross-Sectional (n=10)
Does pulse oximetry accurately estimate arterial oxygen saturation during exercise in healthy subjects compared to direct arterial blood sampling?
Effect estimate: r = 0.82 to 0.93
p-value: p=>0.05
Pulse oximetry provides a useful and reasonably accurate estimation of arterial oxygen saturation during exercise in healthy subjects.
Powers et al. (1989) conducted a cross-sectional in Healthy subjects (n=10). Pulse oximetry (Ohmeda 3700 and Biox IIa) vs. Arterial blood samples using a CO-oximeter was evaluated on Correlation between pulse oximetry (%SpO2) and arterial O2 saturation (%SaO2) (r = 0.82 to 0.93, p=>0.05). Pulse oximetry accurately estimated arterial oxygen saturation during exercise in healthy subjects, showing strong correlations (r=0.82 to 0.93) and insignificant differences versus CO-oximetry.
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