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September 1, 1996Journal of Applied Physiology

Influence of bipolar esophageal electrode positioning on measurements of human crural diaphragm electromyogram

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Key result

Electrode positioning severely influences EMGdi center frequency and RMS values, with centers identifiable via cross-correlation.

  • n=5

Population

Subjects (n = 5) performing voluntary contractions of the diaphragm at functional residual capacity

Design

Other

Authors

JBJennifer BeckSt. Michael's HospitalCSChrister A. SinderbySt. Michael's HospitalLLLars LindströmStockholm University

Discussion

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Implication

Precise electrode placement is required to avoid diaphragm EMG distortion; cross-correlation localization remains hypothesis-generating pending validation.

Structured PICO

P
Population
5 subjects performing voluntary contractions of the diaphragm to assess esophageal electrode positioning.
E
Exposure
Measurement of diaphragm electromyogram (EMGdi) via a multiple-array esophageal catheter consisting of seven sequential electrode pairs with three different electrode configurations
O
Outcome
Influence of electrode positioning on center frequency and root mean square (RMS) values of the diaphragm electromyogramsurrogate

Electrode positioning within the electrically active region of the diaphragm significantly affects EMGdi measurements, highlighting the need for precise localization using cross-correlation analysis.

Cite This Study

Beck et al. (1996) studied this question. Bipolar esophageal electrode positioning was evaluated on Center frequency and root mean square (RMS) values of EMGdi signals. Electrode positioning within the electrically active region of the diaphragm severely influences center frequency and RMS values, with the center identifiable via cross-correlation analysis.

synapsesocial.com/papers/6aa67f4bd7cdd2657b78e526https://doi.org/10.1152/jappl.1996.81.3.1434
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Enhancement of signal quality in esophageal recordings of diaphragm EMG1997 · 129 citations
  2. 2Effects of muscle-to-electrode distance on the human diaphragm electromyogram1995 · 77 citations
  3. 3Diaphragm interference pattern EMG and compound muscle action potentials: effects of chest wall configuration1997 · 42 citations
  4. 4Determining the Optimal Position of Surface Electrodes for Diaphragm Electromyography: A Cross-Sectional Study2024 · 3 citations
  5. 5Influence of lung volume and electrode position on electromyography of the diaphragm1976 · 44 citations