Respiratory muscle activity measured with a noninvasive EMG technique: technical aspects and reproducibility
| Autor: | Eric J. W. Maarsingh, Aline B. Sprikkelman, Maarten O. Hoekstra, W.M.C. van Aalderen, L. A. van Eykern |
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| Přispěvatelé: | Other departments, Faculteit Medische Wetenschappen/UMCG |
| Jazyk: | angličtina |
| Rok vydání: | 2000 |
| Předmět: |
Adult
Male medicine.medical_specialty Aging electromyography Adolescent Physiology Diaphragm Diaphragmatic breathing Physical Therapy Sports Therapy and Rehabilitation Intercostal Muscles Electromyography children Reference Values Physiology (medical) Internal medicine Respiratory muscle medicine Humans Respiratory system Child Rectus abdominis muscle Reproducibility medicine.diagnostic_test business.industry Infant Reproducibility of Results lung function Anatomy Asthma Diaphragm (structural system) medicine.anatomical_structure Child Preschool Cardiology Female business Intercostal muscle |
| Zdroj: | Journal of applied physiology (Bethesda, Md., 88(6), 1955-1961. American Physiological Society Journal of Applied Physiology, 88(6), 1955-1961. AMER PHYSIOLOGICAL SOC |
| ISSN: | 8750-7587 |
| Popis: | A new method is being developed to investigate airway obstruction in young children by means of noninvasive electromyography (EMG) of diaphragmatic and intercostal muscles. The purpose of this study was to evaluate the reproducibility of the EMG measurements. Eleven adults, 39 school children (20 healthy, 19 asthmatic), and 16 preschool children were studied during tidal breathing on separate occasions: two for adults with a time interval of 3 wk and three for children with time intervals of 1 and 24 h. Single electrodes were placed on the second intercostal space left and right of the sternum and at the height of the frontal and the dorsal diaphragm. Bipolar electrode pairs were placed on the rectus abdominis muscle. A newly designed digital physiological amplifier without any analog filtering was used to measure the EMG signals. Except for the average dorsal diaphragm EMG derivation in healthy school children on the second occasion, a significant correlation between the mean peak-to-peak inspiratory activity of average diaphragmatic and intercostal EMG was found in the different age groups on the different measurement occasions ( P< 0.05). To assess the repeatability, we described the agreement between the repeated measurements within the same subjects. No significant differences were found between the measurements on the separate occasions. Our observations indicate that the EMG signals derived from the diaphragm and intercostal muscles are, in different age groups with and without asthma, reproducible during tidal breathing. |
| Databáze: | OpenAIRE |
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