Marinov B, Kostianev S, Turnovska T. Ventilatory efficiency and rate of perceived exertion in obese and non-obese children performing standardized exercise.
The flushing of upper airway dead space also improves ventilatory efficiency and reduces the work of breathing.
The ventilatory efficiency and functional capacity measured by cardiopulmonary exercise test (CPET) has been used as important prognostic variables in congestive heart failure (CHF).
Chronic heart failure is closely related to impaired cardiorespiratory reflex control, including decreased ventilatory efficiency during exercise ( ˙VE/ ˙Vco2-slope) and central sleep apnea (CSA).
Outcome measures: The compared variables were lung volume index (LVI) calculated from lung dimensions on chest X-ray, ventilatory index (VI), ventilatory efficiency index (VEI), response to artificial surfactant treatment, and ventilation days.
This study sought to test whether insulin improves exercise ventilatory efficiency (VE/VCO2slope) and oxygen uptake at peak exercise (peak VO2) in patients with type 2 diabetes heart failure (HF) comorbidity.
It is thought that TI induced a short term reduction in ventilatory efficiency, which appeared to be countered by a series of compensatory mechanisms that include increased ventilation rates, and maintenance of the primary stress response.
Ventilatory efficiency with respect to CO2 elimination.
Patients with low CRF had a lower ventilatory anaerobic threshold, peak oxygen pulse, post-exercise heart rate recovery, and poor ventilatory efficiency.
This process reduces pulmonary ventilatory efficiency and leads progressively to general hypoxia and cardio-pulmonary hypertension and failure.
Therefore, suitable choice or servo-control of ventilator frequency to match the spontaneous respiratory frequency is crucial for optimal ventilatory unloading, as significant phase shift in the entrained respiratory activity may decrease ventilatory efficiency and increase patient discomfort.
