A pilot study quantifying the shape of tidal breathing waveforms using centroids in health and COPD

@article{Williams2013APS,
  title={A pilot study quantifying the shape of tidal breathing waveforms using centroids in health and COPD},
  author={E Mark Williams and Thomas Powell and Morten Eriksen and Phillip Neill and Ricardo Colasanti},
  journal={Journal of Clinical Monitoring and Computing},
  year={2013},
  volume={28},
  pages={67-74}
}
During resting tidal breathing the shape of the expiratory airflow waveform differs with age and respiratory disease. While most studies quantifying these changes report time or volume specific metrics, few have concentrated on waveform shape or area parameters. The aim of this study was to derive and compare the centroid co-ordinates (the geometric centre) of inspiratory and expiratory flow–time and flow–volume waveforms collected from participants with or without COPD. The study does not aim… CONTINUE READING
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