and vice versa31. This influence is most readily apparent in the case of the effect of breathing on heart rate—the increase of heart rate during inspiration and its decrease during expiration
What are the factors that affect the breathing rate of human beings? Gas Exchange: Respiratory exchange of gases takes place at 2 sites namely first in the respiratory surface or respiratory organ and then in the cells or tissues. The former takes place between the oxygen of the su...
We examined the effect of increasing work rate, without a corresponding increase in the pressure-time product, on energy cost and inspiratory muscle endurance (Tlim) in five normal subjects during inspiratory resistive breathing. Tidal volume, mean inspiratory mouth pressure, duty cycle, and hence th...
Sleep, Periodic Breathing and Snoring in the Aged: Control of Ventilation in the Aging and Diseased Respiratory System* The mechanical characteristics of the human lung have been well studied in relation to aging, under conditions of rest, exercise and various stresses, incl... DOUGLAS,CARROLL,MD...
This study examined the ability of the respiratory system of awake normal subjects to correct an acute disturbance in body CO 2 stores produced by rebreathing. Thirteen subjects, after 10 min of O 2 breathing, rebreathed CO 2 for 4 min in order to increase CO 2 stores. The rate of CO ...
Changes in the fetal heart rate associated with fetal breathing and fetal movement. The heart rate was measured from beat to beat using the R-wave of the fetal electrocardiogram as the indicator of each heart-beat. Fetal breathing movements and fetal body movements were detected using either A-...
Effect of Yogic Breathing Techniques in New Sputum Positive Pulmonary Tuberculosis A 24-year-old, unmarried woman diagnosed of pulmonary tuberculosis (PTB) visited our hospital out-patient department in the month of August-2013. Patient c... A Mooventhan,V Khode,L Nivethitha - 《International ...
The autonomic nervous system regulates certain body processes, such as blood pressure and the rate of breathing. This system works automatically (autonomously), without a person’s conscious effort. It’s normal for these two branches to be in constant competition with each other; that’s what ...
Modulation of muscle sympathetic activity during spontaneous and artificial ventilation and apnoea in humans Respiratory modulation of muscle sympathetic activity was compared in relaxed subjects breathing spontaneously and in anaesthetized and non-anaesthetized s... VG Macefield,BG Wallin - 《Journal of the...
Hypoxia may interfere with these processes as it leads to depressed or absent breathing efforts, particularly in preterm infants.20,21 On the other hand, hyperoxia also seems to inhibit the chemoreceptors as the onset of breathing was delayed in asphyxiated animals and infants receiving 100% ...