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Mood states and impedance cardiography-derived hemodynamics
B H Yu1, R Nelesen, M G Ziegler
1Samsung Medical Center, Sungkyunkwan University School of Medicine.
Objective:
This exploratory study investigated the relation between psychological mood states and hemodynamic variables obtained at rest.
Methods:
We measured resting hemodynamic variables using impedance cardiography, blood pressure, heart rate, and the Profile of Mood States (POMS) in 71 participants.
Results:
Mood states were not significantly associated with heart rate, systolic, diastolic, or mean arterial pressure. In comparison with these basic measures of physiology, a number of impedance derived measures of hemodynamics were associated with mood states. Log stroke volume was negatively correlated with POMS tension-anxiety (r = -.319, p = .009) and fatigue-inertia (r = -. 316, p = .009). Log cardiac output was negatively associated with fatigue-inertia (r = -.346, p < .01). Log total peripheral vascular resistance was positively correlated with POMS fatigue-inertia (r = .276, p = .024).
Conclusions:
Our findings suggest that mood states are associated with hemodynamic variables underlying blood pressure.