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Relations (1)
related 3.00 — strongly supporting 7 facts
Heart rate and oxygen saturation are both critical vital signs used to assess homeostatic balance [1], and their physiological relationship is demonstrated by the fact that changes in heart rate are significant predictors of changes in oxygen saturation during hypoxic conditions [2], [3], and [4].
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Sex differences in respiratory and circulatory cost during hypoxic ... nature.com 4 facts
measurementIn a study of physiological responses to hypoxia, multiple regression analysis showed that the change in heart rate (ΔHR) was a significant factor in predicting the change in oxygen saturation (ΔSpO2) for both men (t(8) = -6.54, P = 0.001) and women (t(8) = -4.04, P = 0.010).
measurementThe relative contributions of energy expenditure (EE), ventilation (VE), and heart rate (HR) to the change in oxygen saturation (ΔSpO2) under hypoxic conditions differ by sex: in women, the effects of EE (28.1% vs 15.8% in men) and VE (4.1% vs 1.7% in men) were greater, while in men, the contribution of HR was greater (82.5% vs 67.9% in women).
measurementThe study measured heart rate (HR) using a POLAR RC800X monitor (POLAR Electro, Tokyo, Japan) and monitored oxygen saturation (SpO2) using a TM-2564G pulse oximeter (A&D, Tokyo, Japan) on the left middle finger.
claimThe study hypothesized that women would experience greater arterial hypoxemia than men, and that the contribution rates of energy expenditure, ventilation, and heart rate in response to changes in oxygen saturation would differ between the sexes.
Sex differences in cardiorespiratory control under hypoxia - Frontiers frontiersin.org 2 facts
claimBoos et al. observed that females experience a greater increase in heart rate than males under hypoxia, while also tending to maintain higher oxygen saturation levels.
measurementA power analysis for the study revealed large effect sizes (f) of 0.68 for oxygen saturation (SpO2), 0.61 for heart rate (HR), and 0.52 for tidal volume (Vt).
Physiology, Homeostasis - StatPearls - NCBI Bookshelf ncbi.nlm.nih.gov 1 fact
measurementA patient's vital signs, including blood pressure, core body temperature, heart rate, respiratory rate, and oxygen saturation, serve as the first measurements indicating a potential homeostatic imbalance.