Anatomical optimization of skin electrode placement to record electromyographic activity of erector spinae muscles.
Surg Radiol Anat. 2008-01-09; 30(2): 137-143
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1. Surg Radiol Anat. 2008 Mar;30(2):137-43. doi: 10.1007/s00276-007-0289-y. Epub
2008 Jan 9.
Anatomical optimization of skin electrode placement to record electromyographic
activity of erector spinae muscles.
de Sèze MP(1), Cazalets JR.
(1)Laboratoire d’anatomie UFR2, Université Bordeaux 2, 146 rue Léo-Saignat,
33076, Bordeaux cedex, France.
Fine analysis of body movements is now technologically feasible, together with
simultaneous recording of multiple muscle activity. This is especially true for
the trunk and back muscles during human walking. However, there have been few
anatomic studies of the area where deep back muscle activity is recordable by
skin electrodes. We therefore attempted to optimize skin electrode location for
recording erector spinae muscle activity at different levels of the back. For
this purpose, 20 dissections of the posterior wall of the trunk were performed.
The cutaneous plane was reclined on both sides to expose the superficial muscles
of the posterior wall of the trunk. We dissected then plane-by-plane until we
exposed the erector spinae muscles. The widths of the fascial spinal muscle
insertions were measured at spinal levels easily identified clinically, i.e., C7,
T3, T7, T12 and L4. Electromyographic assessment of the electrode location at
these levels was performed in three subjects. Erector spinae muscle activity
proved possible to record on several areas of the posterior wall through a
superficial muscle aponeurosis. We propose a protocol for placing skin electrodes
to record erector spinae muscle activity based on clinical anatomical references.
PMID: 18183349 [Indexed for MEDLINE]