Key result
Negative pressure breathing amplifies physiological oscillations, with effects modified by body position and dry immersion.
Why the study?
The authors sought to evaluate the effect of body position on the physiological effects of NPBin and compare them with NPBin in dry immersion conditions.
Does negative pressure breathing on inhalation (NPBin) alter central hemodynamics and body fluid distribution across various body positions and during dry immersion?
Does negative pressure breathing on inhalation (NPBin) alter central hemodynamics and body fluid distribution across various body positions and during dry immersion?
Negative pressure breathing on inhalation increases the amplitude of breathing-synchronous physiological oscillations, which are further modulated by body position and dry immersion.
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May alter breathing-synchronous hemodynamics; extends NPB research to non-supine and immersed conditions but remains hypothesis-generating.
Semenov et al. (2025) studied this question. Negative pressure breathing on inhalation (NPBin) vs. Various body positions and dry immersion was evaluated on Changes in central hemodynamics parameters and distribution of body fluids. Negative pressure breathing on inhalation increased the amplitude of physiological parameter oscillations synchronous with breathing, which was further modified by body position and dry immersion.
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