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Spectral analysis of the electromyogram and diaphragmatic muscle fatigue during periodic breathing in infants


, : Spectral analysis of the electromyogram and diaphragmatic muscle fatigue during periodic breathing in infants. Journal of Applied Physiology 58(3): 830-833

Periodic breathing occurs commonly in full-term and preterm infants. The mechanisms which switch breathing on and off within a cycle of periodic breathing are not certain. Since immature infants may experience diaphragmatic muscle fatigue, 1 potential switching mechanism is fatigue. Power spectra of the electromyogram, uncontaminated by the ECG artifact, were studied for evidence of diaphragmatic muscle fatigue during spontaneous periodic breathing in infants. A fall in the high-frequency (103-600 Hz) power and an increase in the low-frequency (23-47 Hz) power during periodic as compared with normal breathing would indicate fatigue. This effect was not observed in any of the infants studied. Hence, there is no evidence that periodic breathing is the result of diaphragmatic muscle fatigue. The effect of drugs such as theophylline in eliminating periodic breathing may be unrelated to the fact that they also reduce fatigue.

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Related references

Nugent, S.T.; Finley, J.P., 1985: Spectral analysis of the EMG and diaphragmatic muscle fatigue during periodic breathing in infants. Periodic breathing occurs commonly in full-term and preterm infants. The mechanisms which switch breathing on and off within a cycle of periodic breathing are not certain. Since immature infants may experience diaphragmatic muscle fatigue, one pot...

Teague W.G.; Targett R.C.; Richardson C.A.; Heldt G.P., 1985: Power spectral analysis of diaphragmatic electromyogram in preterm and term infants. Clinical Research 33(1): 149A

Mills, K.R., 1982: Power spectral analysis of electromyogram and compound muscle action potential during muscle fatigue and recovery. 1. The power spectral changes of the voluntary electromyogram (e.m.g.) and of the compound muscle action potential (c.m.a.p.) evoked by supramaximal nerve stimulation have been compared in fatigue and recovery of human voluntary muscle contraction...

Mills, K.R.; Edwards, R.H., 1984: Muscle fatigue in myophosphorylase deficiency: power spectral analysis of the electromyogram. It has been postulated that the power spectral shift in the surface EMG during fatigue is due to accumulation of muscle lactate. This hypothesis has been directly tested by measuring such shift in 3 patients with myophosphorylase deficiency who pe...

Nugent, S.T.; Finley, J.P., 1983: Spectral analysis of periodic and normal breathing in infants. IEEE Transactions on Bio-Medical Engineering 30(10): 672-675

Nugent S., 1982: Power spectral analysis of normal and periodic breathing in infants. Federation Proceedings: Abstract 6472

Bower, J.S.; Sandercock, T.G.; Rothman, E.; Abbrecht, P.H.; Dantzker, D.R., 1984: Time domain analysis of diaphragmatic electromyogram during fatigue in men. Diaphragmatic fatigue has been correlated with a change in the electromyogram recorded from the diaphragm (EMGdi), which suggests that the electromyogram is a potential clinical tool to detect respiratory muscle fatigue. Changes in the EMGdi have...

Finley J.P.; Nugent S., 1984: Diaphragmatic electro myography during periodic breathing in infants. Federation Proceedings 43(3): ABSTRACT 2110

Chambille B.; Monrigal J.P.; Dehan M.; Praud J.P.; Gaultier C.L., 1988: On line spectral analysis of the diaphragmatic electromyogram in newborn. FASEB Journal 2(5): ABSTRACT 7066

Mills K.R.; Edwards R.H.T., 1984: Lactate accumulation is not responsible for electromyogram power spectral shift in muscle fatigue. Electroencephalography & Clinical Neurophysiology 58(1): 16P