Respiratory powers were expressed as the area under the spectrum from 0.18 to 0.22 Hz and used as a marker of respiratory sinus arrhythmia (RSA).
Thus, recent evidence indicative of highly efficient flight capabilities [2], [6], [7], [16], [17] brings forward interesting questions regarding the structure and function of the respiratory system that powered the metabolic demands of pterosaurian flight.
Results from the stress testing database show that information on respiratory frequency produces HF power estimates which closely resemble those from the simulations which exhibited lower SD.
To power the respiratory chain under energy-limited conditions, mycobacteria switch to alternative primary dehydrogenases to provide reducing equivalents for respiration.
For a condition with a lower prevalence of 15% (e.g. some respiratory conditions), having 80% power to detect a reduction of 5% would require a sample of 1450.
However, even with a lower overall mortality, we detected a statistically significant association between both LIS and Berlin severity and both in-hospital death and more prolonged respiratory failure, demonstrating sufficient power.
Of the five studies that used a protocol designed to enhance respiratory muscle strength and power, four showed no change in exercise VE after training [ 11, 12, 15, 18], and one showed an increase that just failed to reach significance (P= 0.051, [ 17].
Several previous questionnaire-based studies and surveys that used traffic counts as exposure metrics, have suggested that heavy traffic powered by diesel engines is more harmful for respiratory health than light traffic powered by gasoline engines [ 13, 34].
Increasing the PEEP to 15 cmH2O did not further change the power spectra or respiratory system compliance despite improving oxygenation.
Conclusions: The advantage of continuous fetal pulse oximetry surveilling the fetus under suspicion of hypoxia appears limited by the poor diagnostic power of the respiratory parameter saturation itself and by the impairment of the precision of the technology.
