scholarly journals Increase in Muscle Activation during Physiotherapy with Electromyography Biofeedback for Patients with Acute Cervical Spinal Cord Injuries*

Author(s):  
Guijin Li ◽  
Caitlin Doman ◽  
Nina L. Suresh
2002 ◽  
Vol 11 (1) ◽  
pp. 71-76 ◽  
Author(s):  
Jeannette D. Hoit ◽  
Robert B. Banzett ◽  
Robert Brown

Two men with high cervical spinal cord injuries and phrenic nerve pacers were studied with and without an elastic binder around the abdomen. Speech improved with the binder, as determined by listener preference ratings provided by 10 judges and by the subjects themselves. Improvement was substantial in one subject and slight in the other. The subject with the greater improvement exhibited higher peak tracheal pressure, higher sound pressure level, and longer utterance duration with the binder in place. Speech improvement was attributed primarily to augmentation of tidal volume associated with the use of the binder. An abdominal binder can be an effective intervention to improve speech in certain individuals with spinal cord injuries and phrenic nerve pacers. Speech may be further improved by using behavioral strategies, such as neck muscle activation, glossopharyngeal breathing, and pharyngeal or buccal speech production.


Radiology ◽  
1978 ◽  
Vol 129 (3) ◽  
pp. 707-711 ◽  
Author(s):  
Jin S. Leo ◽  
R. Thomas Bergeron ◽  
Irvin I. Kricheff ◽  
M. Vallo Benjamin

Author(s):  
Han Ting Wang ◽  
David Williamson ◽  
Mary Francispillai ◽  
Andréanne Richard-Denis ◽  
Martin Albert

2017 ◽  
Vol 13 (8) ◽  
pp. 724-730
Author(s):  
Bethany Hooper ◽  
Michele Verdonck ◽  
Delena Amsters ◽  
Michelle Myburg ◽  
Emily Allan

1985 ◽  
Vol 34 (1) ◽  
pp. 284-288
Author(s):  
Motofumi Komori ◽  
Kunio Sasaki ◽  
Keiichiro Shiba ◽  
Koichiro Yamano ◽  
Takayoshi Ueta ◽  
...  

Neurosurgery ◽  
2011 ◽  
Vol 69 (4) ◽  
pp. 930-941 ◽  
Author(s):  
Yiyan Zheng ◽  
Yi Ping Zhang ◽  
Lisa B E Shields ◽  
Yongjie Zhang ◽  
Marcus W Siu ◽  
...  

2017 ◽  
Vol 118 (4) ◽  
pp. 2344-2357 ◽  
Author(s):  
Elisa J. Gonzalez-Rothi ◽  
Kristi A. Streeter ◽  
Marie H. Hanna ◽  
Anna C. Stamas ◽  
Paul J. Reier ◽  
...  

C2 spinal hemilesion (C2Hx) paralyzes the ipsilateral diaphragm, but recovery is possible through activation of “crossed spinal” synaptic inputs to ipsilateral phrenic motoneurons. We tested the hypothesis that high-frequency epidural stimulation (HF-ES) would potentiate ipsilateral phrenic output after subacute and chronic C2Hx. HF-ES (300 Hz) was applied to the ventrolateral C4 or T2 spinal cord ipsilateral to C2Hx in anesthetized and mechanically ventilated adult rats. Stimulus duration was 60 s, and currents ranged from 100 to 1,000 µA. Bilateral phrenic nerve activity and ipsilateral hypoglossal (XII) nerve activity were recorded before and after HF-ES. Higher T2 stimulus currents potentiated ipsilateral phasic inspiratory activity at both 2 and 12 wk post-C2Hx, whereas higher stimulus currents delivered at C4 potentiated ipsilateral phasic phrenic activity only at 12 wk ( P = 0.028). Meanwhile, tonic output in the ipsilateral phrenic nerve reached 500% of baseline values at the high currents with no difference between 2 and 12 wk. HF-ES did not trigger inspiratory burst-frequency changes. Similar responses occurred following T2 HF-ES. Increases in contralateral phrenic and XII nerve output were induced by C4 and T2 HF-ES at higher currents, but the relative magnitude of these changes was small compared with the ipsilateral phrenic response. We conclude that following incomplete cervical spinal cord injury, HF-ES of the ventrolateral midcervical or thoracic spinal cord can potentiate efferent phrenic motor output with little impact on inspiratory burst frequency. However, the substantial increases in tonic output indicate that the uninterrupted 60-s stimulation paradigm used is unlikely to be useful for respiratory muscle activation after spinal injury. NEW & NOTEWORTHY Previous studies reported that high-frequency epidural stimulation (HF-ES) activates the diaphragm following acute spinal transection. This study examined HF-ES and phrenic motor output following subacute and chronic incomplete cervical spinal cord injury. Short-term potentiation of phrenic bursting following HF-ES illustrates the potential for spinal stimulation to induce respiratory neuroplasticity. Increased tonic phrenic output indicates that alternatives to the continuous stimulation paradigm used in this study will be required for respiratory muscle activation after spinal cord injury.


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