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(Chest. 1976;70:158-162.)
© 1976 American College of Chest Physicians

Analytical Methods for the Study of Electrical Activity in Respiratory Nerves and Muscles

Myron J. Evanich Ph.D.1; Melvin Lopata M.D.1; and Ruy V. Lourenço M.D.1

1 Pulmonary Section, University of Illinois Abraham Lincoln School of Medicine, and West Side Veterans Administration Hospital, Chicago

In conclusion, it is suggested that:

(1) Electrical activity of nerve and muscle can be used to study the pattern of neural drive to respiratory muscles.

(2) Methods of analysis should include those that resolve changes in the pattern of neural discharge with respect to time; namely, moving average and moving variance. Both peak and slope parameters of moving average and/or variance should be used in analysis of electrical activity.

(3) Several technological problems exist relative to removing interference, including ECG. The first step in this direction should be a power spectrum analysis of the EMG and ECG obtained with an esophageal lead in man, and eventually, the use of averaging procedures to remove unwanted random phase periodic noise should be investigated.

(4) To avoid confusion in the literature, proper units should be applied regardless of the measure chosen to analyze the electrical activity of the respiratory nerves and muscles.






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Copyright © 1976 by the American College of Chest Physicians.