|
Muscle
|
 Click on image for larger view |
|
|
Name
|
Erector Spinae
|
|
|
Subdivision
|
longissimus
|
|
|
Muscle Anatomy
|
||
|
Origin
|
In lumbar region is blended with iliocostalis lumborum,
posterior surfaces of transverse and accessory processes of lumbar
vertebrae, and anterior layer of thoracolumbar fascia.
|
|
|
Insertion
|
By tendons into tips of transverse process of all
thoracic vertebrae, and by fleshy digitations anto lower 9 or 10
ribs between tubercles and angles.
|
|
|
Function
|
Extension
|
|
|
Recommended sensor placement procedure
|
||
|
Starting posture
|
Prone with the lumbar vertebral columns slightly
flexed.
|
|
|
Electrode size
|
Maximum size in the direction of the muscle fibres:
10 mm.
|
|
|
Electrode distance
|
20 mm
|
|
|
Electrode placement
|
||
|
- location
|
The electrodes need to be placed at 2 finger width
lateral from the proc. spin. of L1.
|
|
|
- orientation
|
Vertical
|
|
|
- fixation on the skin
|
(Double sided) tape / rings.
|
|
|
- reference electrode
|
On the proc. spin. of C7.
|
|
| Clinical test | Lifting the trunk from a prone position. | |
| Remarks |
The SENIAM guidelines include a separate sensor
placement procedure for the erector spinae iliocostalis muscle.
|
|