A novel technique for recording from the serratus anterior Michael J. DePalma, MD, William S. Pease, MD, Ernest W. Johnson, MD, Vivek Kadyan, MD Archives of Physical Medicine and Rehabilitation Volume 86, Issue 1, Pages 17-20 (January 2005) DOI: 10.1016/j.apmr.2004.04.050 Copyright © 2005 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions
Fig 1 The active electrode is placed over the serratus digitations starting at the nipple line extending toward the anterior superior iliac spine. The reference is placed over the seventh rib inferior to the pectoralis major, and the ground is place over the ipsilateral latissimus. The stimulator is positioned just anterior to the midaxillary line. Archives of Physical Medicine and Rehabilitation 2005 86, 17-20DOI: (10.1016/j.apmr.2004.04.050) Copyright © 2005 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions
Fig 2 The lower trace shows the motor response of the serratus after supramaximal stimulation of the long thoracic nerve in the axilla. The top trace shows the submaximal stimulation. Archives of Physical Medicine and Rehabilitation 2005 86, 17-20DOI: (10.1016/j.apmr.2004.04.050) Copyright © 2005 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions
Fig 3 Top trace depicts sharp takeoff of serratus anterior response to axillary stimulation of long thoracic nerve. The bottom trace shows no response from the latissimus with the same stimulation. Archives of Physical Medicine and Rehabilitation 2005 86, 17-20DOI: (10.1016/j.apmr.2004.04.050) Copyright © 2005 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions
Fig 4 Relationship between the serratus anterior DML measurements and subjects’ height. Archives of Physical Medicine and Rehabilitation 2005 86, 17-20DOI: (10.1016/j.apmr.2004.04.050) Copyright © 2005 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions
Fig 5 Relationship between BMI and duration of the serratus anterior CMAP response. Archives of Physical Medicine and Rehabilitation 2005 86, 17-20DOI: (10.1016/j.apmr.2004.04.050) Copyright © 2005 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions
Fig 6 Relationship between BMI and amplitude of the serratus anterior CMAP response. Archives of Physical Medicine and Rehabilitation 2005 86, 17-20DOI: (10.1016/j.apmr.2004.04.050) Copyright © 2005 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions