ArticleRespiratory physiology & neurobiology2013
Non-stationarity and power spectral shifts in EMG activity reflect motor unit recruitment in rat diaphragm muscle.
Article in Respiratory physiology & neurobiology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers.
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Who cites it
44 citing papers in PubMed.
- Estimation of persistent inward currents contribution to inspiratory motoneuron firing in humans.The Journal of physiology · 2026Article
- Impact of upper cervical spinal cord hemisection on diaphragm neuromotor control.Journal of neurophysiology · 2025Article
- An update on spinal cord injury and diaphragm neuromotor control.Expert review of respiratory medicine · 2025Review
- Chronic sustained hypoxia alters the pattern of diaphragm electrical activity in anaesthetized rats.Experimental physiology · 2025Article
- A Simple, Low-Cost Implant for Reliable Diaphragm EMG Recordings in Awake, Behaving Rats.eNeuro · 2025Article
- Hypercapnia impacts neural drive and timing of diaphragm neuromotor control.Journal of neurophysiology · 2024Article
- Assessing Functional Recovery of Eupneic Diaphragm Activity Following Unilateral Cervical Spinal Cord Injury in Rats.Journal of visualized experiments : JoVE · 2024Article
- Neuromotor control of spontaneous quiet breathing in awake rats evaluated by assessments of diaphragm EMG stationarity.Journal of neurophysiology · 2023Article
- Chloroquine impairs maximal transdiaphragmatic pressure generation in old mice.Journal of applied physiology (Bethesda, Md. : 1985) · 2023Article
- Effect of Obesity on Masticatory Muscle Activity and Rhythmic Jaw Movements Evoked by Electrical Stimulation of Different Cortical Masticatory Areas.Journal of clinical medicine · 2023Article
- Automated evaluation of respiratory signals to provide insight into respiratory drive.Respiratory physiology & neurobiology · 2022Article
- Validation of Visually Identified Muscle Potentials during Human Sleep Using High Frequency/Low Frequency Spectral Power Ratios.Sensors (Basel, Switzerland) · 2021Article
- Quantifying muscle alterations in a Parkinson's disease animal model using electromyographic biomarkers.Medical & biological engineering & computing · 2021Article
- Muscle-specific deletion of the vitamin D receptor in mice is associated with diaphragm muscle weakness.Journal of applied physiology (Bethesda, Md. : 1985) · 2021Article
- Acute intrathecal BDNF enhances functional recovery after cervical spinal cord injury in rats.Journal of neurophysiology · 2021Article
- Effects of low occlusal loading on the neuromuscular behavioral development of cortically-elicited jaw movements in growing rats.Scientific reports · 2021Article
- Diaphragm neuromuscular transmission failure in a mouse model of an early-onset neuromotor disorder.Journal of applied physiology (Bethesda, Md. : 1985) · 2021Article
- Article
- Inhibition of TrkB kinase activity impairs transdiaphragmatic pressure generation.Journal of applied physiology (Bethesda, Md. : 1985) · 2020Article
- Adenosine 2A receptor inhibition protects phrenic motor neurons from cell death induced by protein synthesis inhibition.Experimental neurology · 2020Article
Corrections and comments
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Authors and funding
4 authors.
Funding
Abstract
We hypothesized that a shift in diaphragm muscle (DIAm) EMG power spectral density (PSD) to higher frequencies reflects recruitment of more fatigable fast-twitch motor units and motor unit recruitment is reflected by EMG non-stationarity. DIAm EMG was recorded in anesthetized rats during eupnea, hypoxia-hypercapnia (10% O(2)-5% CO(2)), airway occlusion, and sneezing (maximal DIAm force). Although power in all frequency bands increased progressively across motor behaviors, PSD centroid frequency increased only during sneezing (p<0.05). The non-stationary period at the onset of EMG activity ranged from ∼80 ms during airway occlusion to ∼150 ms during eupnea. Within the initial non-stationary period of EMG activity 80-95% of motor units were recruited during different motor behaviors. Motor units augmented their discharge frequencies progressively beyond the non-stationary period; yet, EMG signal became stationary. In conclusion, non-stationarity of DIAm EMG reflects the period of motor unit recruitment, while a shift in the PSD towards higher frequencies reflects recruitment of more fatigable fast-twitch motor units.
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