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Topic: Erector Spinae

In the News (Sat 19 Dec 09)

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	The Intrinsic Back Muscles (Site not responding. Last check: 2007-10-16)
		This is the lateral column of the erector spinae and it arises from the common origin and inserts into the angles of the ribs.
		This is the intermediate column of the erector spinae muscle and it arises from the common origin and is attached to the transverse processes of the thoracic and cervical vertebrae, and the mastoid process of the temporal bone of the skull.
		When the massive erector spinae muscles are removed, several short muscles (semispinalis, multifidus, and rotatores) are visible in the groove between the transverse and spinous processes of the vertebrae.
	www.geocities.com /medinotes/i-backmm.htm (972 words)

	21
		erector spinae was analyzed by use of EMG, and the shape of the vertebral column was anayzed by X-ray.
		erector spinae in a case of the trunk extension, and this result was discussed in relation to low back pain.
		erector spinae relaxed, and from this position, the lumbo-sacral angle did not change further, even if the trunk was flexed more deeply.
	wwwsoc.nii.ac.jp /jspe3/journal/PEabstract/21/21-2.htm (1465 words)

	Vestibular actions on back and lower limb muscles during postural tasks in man -- Ali et al. 546 (2): 615 -- The ... (Site not responding. Last check: 2007-10-16)
		Records were taken bilaterally from the erectores spinae muscles of the back at up to four vertebral levels (defined by the spinous processes) and from muscles in the lower limbs.
		A, excitatory EMG responses recorded from erector spinae at L3/L4 and lower limb muscles on the side to which the subject was facing and with the stimulating anode facing to the posterior.
		Responses in the erectores spinae during movement in the coronal plane were around one-third the amplitude of those seen during movements in the sagittal plane.
	jp.physoc.org /cgi/content/full/546/2/615 (6618 words)

	Building The Back, Part 3
		The iliocostalis or lateral layer of the erector spinae starts out at what is called the thoracolumbar aponeurosis or the base of the spine and runs up the entire length of the spine inserting at the cervical transverse processes or the base of the neck.
		The longissimus or middle layer of the erector spinae also originates at the thoracolumbar aponeurosis or the base of the spine and runs up the entire length of the spine inserting at the cervical transverse processes or the base of the neck.
		The spinalis or medial layer of the erector spinae originates at the ligamentium nuchae, which is much higher on the low back and inserts high in the upper back at the cervical and thoracic spinous processes.
	www.angelfire.com /tx/APATX/page8.html (415 words)

	demystifying the treatment of strain/sprain...
		It is important to strengthen the erector spinae musculature to a certain extent; however, it depends on the individual's low back condition on whether this form of treatment is warranted.
		Electromyographic (EMG) data show that a tight erector spinae muscle will be active during its reverse action, trunk flexion, and thus inhibits the action of the agonist and the abdominals.
		After the erector spinae muscle has been stretched, not only does it relax during trunk flexion, but also a significant, spontaneous facilitation effect is seen in the abdominal muscles.
	www.chiroweb.com /archives/17/03/18.html (2093 words)

	e f e l d - Dr. Robert J. Burgess
		The long superficial erector spinae muscles (thoracic fibres of longissimus thoracis and iliocostalis lumborum Figure 2.1) but not the short lumbar muscles (lumbar fascicles of longissimus and iliocostalis) are active during an anterior tilt of the pelvis in sitting as determined by EMG (Andersson et al 1996).
		The long superficial erector spinae muscles and the abdominals span from the pelvis to the thorax attaching to ribs not vertebrae (Figure 2.1 and 2.2).
		Erector spinae muscles initiate extension from upright standing but the motion is then controlled by the abdominals acting eccentrically and synchronously with gravity (Ortengren and Andersson 1977; Thorstensson et al 1985; Crenna et al 1987).
	www.efeld.com /phd/lit_rev.html (10813 words)

	Hip Extension and Abduction Dysfunctions
		Immediately after the contraction of these two muscles, the contralateral side erector spinae muscle contracts, followed by the contraction of the ipsilateral erector spinae muscle to help stabilize the lumbar spine and pelvis allowing movement of the hip during gait.
		A change often seen in altered hip extension movement is the contraction of the ipsilateral erector spinae muscle before the gluteus maximus muscle contracts, to initiate the movement of hip extension.
		The erector spinae will contract on the ipsilateral side of hip extension before contraction of the gluteus maximus to initiate hip extension and stabilize the pelvis.
	www.ccptr.org /DJF/newpage3.htm (2810 words)

	Applied Motor Control <> Spinal Muscles to Hips and Knees <> (Site not responding. Last check: 2007-10-16)
		If the erector spinae are not available to help support this weakened function, the hip muscles or joint capsule may become strained.
		At the same time, since the erector spinae now must do double duty, they are at risk of fatigue, and are more likely to fail when peak demand occurs.
		If the hip flexors are weak, palpate for tension in the erector spinae of the lower thoracic region on the same side.
	www.appliedmotorcontrol.com /6.htm (558 words)

	INVESTIGATION OF FLEXION-RELAXATION IN WEIGHT-TRAINING SUBJECTS (Site not responding. Last check: 2007-10-16)
		The purpose of this investigation was to investigate the flexion-relaxation phenomenon in weight-training and non-training subjects in order to gain insight into whether the parallel elastic component of the erector spinae may be responsible for the phenomenon.
		The specific hypothesis is that the weight-trained individuals have more erector spinae bulk and therefore may have a larger parallel elastic component stiffness, and accordingly they may be able to support the required external moment at a lesser degree of spinal flexion.
		The study involved measuring activity of the erector spinae using surface electromyography (EMG) and measuring the spinal flexion angle using a 3-Space electromagnetic device.
	www.asb-biomech.org /onlineabs/NACOB98/284 (914 words)

	* Erector Spinae - (Fitness): Definition (Site not responding. Last check: 2007-10-16)
		The erector spinae muscles of the lower back are like two thick columns of muscle on either side of your spinal column.
		The spinal erectors run from the base of your pelvis to almost the full length of your spine...
		Translated to the back, the erector spinae and the rectus abdominis muscles produce voluntary movement while the multifidus and transverse abdominis muscles provide stability...
	www.mimihu.com /fitness/erector_spinae.html (189 words)

	Spectral analysis of erector spinae muscle surface electro-myography as an index of exercise performance in maximal ... (Site not responding. Last check: 2007-10-16)
		Myoelectric signals from surface electrodes on the erector spinae muscles were digitized and MPF was calculated every ten seconds.
		The erector spinae muscle do not move vigorously during treadmill running, and MPF of the erector spinae muscle was reported to decrease in static contraction similar to other muscles (2, 7, 14).
		Since the erector spinae muscle contains relative high percentages of slow twitch fibers (12), it may be more resistible to fatigue than other muscles (17), and so fatigue of the erector spinae muscle may represent fatigue of other muscles.
	www.med.tokushima-u.ac.jp /jmi/vol47/text/v47_n1-2_p029.html (2549 words)

	Applied Motor Control <> Neck Relationships <> (Site not responding. Last check: 2007-10-16)
		The erector spinae, upper trapezius, and scalenes all perform lateral flexion of the cervical spine.
		One side of the erector spinae may be performing all of the cervical extension.
		The erector spinae of the neck perform bracing for lateral flexion and rotation, but may be recruited to perform the action itself.
	www.appliedmotorcontrol.com /8.htm (997 words)

	ILIO-COSTALIS LUMBORUM and LONGISSIMUS DORSI of the ERECTOR SPINAE GROUP (Site not responding. Last check: 2007-10-16)
		Common Origin: A broad, thick tendon from the median and lateral sacral crests, the accessory, spinous and transverse processes of the lumbar region (and from the spinous processes of two thoracic vertebrae), part of the lumbar fascia, the inner lip of the iliac crests medially and blends with the posterior ligaments of the sacrum.
		Running (partly) in the vertebral groove, lie the ilio-costalis lumborum and longissimus dorsi bands of the erector spinae; these thick bands of muscle converge and descend to insert (anatomical origin) on the sacrum and the crests of the ilium where they become thinner (for this reason the erector spinae is palpated superior to the sacrum).
		Listing Involvement: The erector spinae, when in combination with other sacral muscles, is working for the superior correction of sacral inferiority and/or ilium inferiority.
	home.epix.net /~ampspine/erector.htm (336 words)

	Support Systems Ltd - page1 (Site not responding. Last check: 2007-10-16)
		IEMG activity of the lumbar erector spinae muscles did not differ between controls and patients when lying on the LBS on top of the CM after either acute or chronic exposure.
		For a patient to be included in the study, deep palpation of the lumbar erector spinae muscles or the spinous processes had to elict pain or discomfort.
		This finding indicates that tonic activity of the erector spinae muscle is chronically increased in patients with LBP when lying on the CM, but that this activity decreases when they rest on a LBS.
	www.backbeds.com /page1.htm (2249 words)

	A Pathological Erector Spinae Reflex - A New Sign Of Mechanical Pelvis Dysfunction (Site not responding. Last check: 2007-10-16)
		In my clinical work on low back pain patients i have for years often observed an increased local tension and tenderness in erector spinae at the thoracic level, mostly only on one, usually the left side.
		It may vary from a weak contraction restricted to the thoracic region of the muscle to a pronounced one involving the whole erector spinae and sometimes also neck and leg muscles.
		The operator presses his finger tips of one or both hands against the medial part of the erector spinae muscle on one side at a time at the T5-T11 levels, 50-60mm lateral of the spinal processes.
	www.chiroclinic.com.au /conditions/coccyx1.shtml (556 words)

	FREQUENCY RESPONSE OF SPINE EXTENSORS DURING RAPID ISOMETRIC CONTRACTIONS: EFFECTS OF MUSCLE LENGTH AND TENSION (Site not responding. Last check: 2007-10-16)
		The purpose of this study was to define the frequency response transfer function of the upper and lower erector spinae musculature, at different lengths and tensions, using rectified low pass filtered EMG to enable estimates of force from the electromyogram, particularly during ballistic contractions.
		To facilitate analysis of co-contraction, EMG of spine extensor (thoracic and lumbar erector spinae) and abdominal wall musculature (rectus abdominis and external oblique) were measured together with force output from the back against the load cell.
		Cut-off frequencies were selected qualitatively and quantitatively by cross correlating force with each EMG channel (right, left and weighted average for upper and lower erector spinae muscles) over a two second window commencing half a second before the onset of force.
	www.asb-biomech.org /onlineabs/NACOB98/155 (1020 words)

	Purdue University Calumet \| Department of Behavioral Sciences - Hospitality & Tourism Management
		Erector Spinae Universitas (ESU) - Purdue Calumet's Fitness Club
		With nearly 2,000 students and a number of faculty as members, the Total Fitness and Wellness Centers are one of the most utilized, most popular and well-respected resources on this campus.
		Erector Spinae Universitas, or ESU, have chartered this club to inform, teach, motivate, and proclaim the benefits of both physical fitness, as well as a total wellness philosophy to the remainder of the Purdue Calumet Family.
	www.calumet.purdue.edu /htm/erectorspinae.html (290 words)

	Vertebral Column, Spinal Cord and Meninges
		Limit your study of the erector spinae muscles - Dissection of the erector spinae muscles should stop when you see three columns of muscle.
		Learn only the names of the 3 columns of erector spinae (iliocostalis, longissimus and spinalis), the segmental nature of blood and nerve supply and the group action.
		Completely remove the erector spinae muscles and transversospinal group of muscles.
	anatomy.uams.edu /AnatomyHTML/spinalcord.html (3912 words)

	Back Strong (Site not responding. Last check: 2007-10-16)
		When your nervous system recruits the rectus abdominis and erector spinae at the greater intensity as learned when wearing the belt (40,44), you are likely to have increased compression, torsion and/or sheer in one or more segments of your lumbar spine, but without the hoop tension provided by the belt (42,43).
		The erector spine musculature serve to dissipate kinetic energy through rotary action on the spinal column prior to reaching the cranium.
		This mechanism may explain the high correlation between biceps femoris injury in lifters using belts and sprinters with TVA dysfunction; theoretically, the biceps may be working to tension the thoracolumbar fascia system to compensate for inadequate action of the TVA.
	www.personalpowertraining.net /article%20paul%20chekback_strong2.htm (3700 words)

	Research on trigger points, participate in a study (Site not responding. Last check: 2007-10-16)
		Shown above is the pain pattern for the Erector Spinae.
		Since the erector spinae muscle runs the full length of the vertebra, pain may refer from between the shoulder blades upwards into the shoulder and chest, or downwards into the buttocks.
		Straining to lift objects, and movements that combine bending and twisting of the trunk.
	www.trigger-point-injections.com /p_erector.htm (384 words)

	PT Central - Muscles of the Trunk (Site not responding. Last check: 2007-10-16)
		Origin: common tendinous origin: (same for all lower erector spinae)
		deep surface of tendenous origin of erector spinae
		Insertion: spinous process of all vertebrae extending from L5 - C2 (skipping 1-3 segments)
	www.ptcentral.com /muscles/muscletrunk.html (883 words)

	Back
		The cervical spines[?] are difficult to feel, except the seventh and sometimes the second, and although the former is called the vertebra prominens[?], it is less easily felt than is that of the first thoracic.
		The spinal furrow is caused by the prominence of the erector spinae muscles on each side; these become less well marked as they run upward.
		The outlines of the scapulae can be well seen; they cover the ribs from the second to the seventh inclusive.
	www.findword.org /ba/back.html (736 words)

	Motor evoked potentials elicited from erector spinae muscles in patients with thoracic myelopathy (Site not responding. Last check: 2007-10-16)
		Study design: A prospective study was conducted to test the utility of the motor evoked potentials (MEPs) from the erector spinae muscles as a measure to estimate the motor level of thoracic compression myelopathies in 13 consecutive patients.
		Methods: This electrophysiological study consisted of transcranial magnetic stimulation (TMS) of the brain and surface recording of MEPs from voluntarily contracted erector spinae muscles with the patient in the prone position.
		The technique is of particular value in estimating the motor level of the lesions rostral to T10-11 vertebral level, which can not be achieved by clinical examinations or MEP recordings from the lower limb.
	www.nature.com /cgi-taf/DynaPage.taf?file=/sc/journal/v40/n11/abs/3101376a.html (397 words)

	erector spinae muscle (anatomy) - General Practice Notebook (Site not responding. Last check: 2007-10-16)
		erector spinae muscle (anatomy) - General Practice Notebook
		The erector spinae is the largest muscle mass of the back.
		Oxbridge Solutions Ltd® is an independent company owned by the authors which does not receive income from any other organisation or individual.
	www.gpnotebook.co.uk /cache/-596967347.htm (117 words)

	Finch Windmill
		Right pectoralis major and latissimus dorsi; right and left erector spinae; left hamstrings, quadriceps and anterior tibialis; right quadriceps, anterior tibialis and gastrocnemius
		Right triceps, wrist flexors and latissimus dorsi; right and left erector spinae; right hamstrings, quadriceps and anterior tibialis; left triceps and latissimus dorsi; left hamstrings, quadriceps, anterior tibialis and gastrocnemius
		Right triceps, wrist flexors and latissimus dorsi; right and left erector spinae; right hamstrings, quadriceps and anterior tibialis; left triceps, wrist flexors, pectoralis major and latissimus dorsi; left hamstring, quadriceps, anterior tibialis and gastrocnemius
	www.finchwindmill.com /musclelevel.htm (224 words)

	Renewed Spirit Massage - NMT erector spinae protocol (Site not responding. Last check: 2007-10-16)
		Renewed Spirit Massage - NMT erector spinae protocol
		· Erector spinae muscle runs the full length of the vertebra, pain may refer from between the shoulder blades upwards into the shoulder and chest, or downwards into the buttocks.
		Muscles are pulling up and down… not left and right: If one side is in concentric contraction (muscle shortens during contractions) and one side is in eccentric contraction (muscle lengthens during contraction), then the contracted side needs to be worked four times more than the eccentric side.
	www.renewed-spirit.com /NMT/Protocals/erector%20spinae%20protocol.htm (125 words)

	Educational Toys and Specialty Toys - Buy Online at Fat Brain Toys
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		While the world has changed dramatically in the last 90 years, the Erector Set retains the same simple concept and high quality.
	www.FatBrainToys.com (679 words)

	MDA Research \| Rehabilitation Management in Neuromuscular Disease
		DMD patients develop scoliosis most commonly between the ages of 13 and 15 years, corresponding closely with the adolescent growth spurt (2).
		While there is evidence on computerized tomography for asymmetric involvement of the erector spinae in DMD, it is extremely difficult to clinically detect asymmetric paraspinous muscle strength (42).
		Studies of trunk flexor or extensor strength in NMD patients with or without scoliosis showed no significant difference in MMT, although this method is not capable of measuring asymmetric strength (2,42,43).
	www.mdausa.org /research/carter.html (7051 words)

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