Electromyographic Response of the Porcine Multifidus Musculature After Nerve Stimulation

Indahl, Aage; Kaigle, Allison M.; Reikerås, O; Holm, Sture

doi:10.1097/00007632-199512150-00006

Cited by 171 publications

(108 citation statements)

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“…As the viscoelastic tissues are lax due to the creep developed in the course of the cyclic work, the ligamentomuscular [52], as well as facet capsule-muscular [2,14,15] reflexes are severely attenuated and non-functional [47]. On the other hand, the viscoelastic tissues were subjected to a certain level of micro-damage [57][58][59] and probably developed an acute inflammation [19,50] which in turn may trigger the pain receptors in these tissues to initiate a protective muscular activity.…”

Section: Discussionmentioning

confidence: 99%

Motor control of lumbar instability following exposure to various cyclic load magnitudes

et al. 2009

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The motor control system may compensate for lumbar instability following cyclic work with differential response to load magnitude. In vivo felines were exposed to a cumulative 1 h of cyclic work at 0.25 Hz. One group exposed to light whereas the second to heavy load while recording lumbar displacement and multifidus EMG during work and in single test cycles over 7 h rest post-work. Significant laxity and reduced reflexive EMG activity were evident immediately post-work in both groups. EMG and laxity recovered over 7 h rest in the group exposed to light load whereas in the group exposed to heavy load, motor control compensation was triggered within 1-2 h postwork. The compensation was expressed by earlier and stronger muscular activation than in baseline. It is concluded that cyclic work is deleterious to spine stability immediately after work. Work with heavy loads elicits delayed motor control compensation whereas work with light loads leaves the spine unstable and exposed to injury for several hours. Overall, prolonged cyclic or repetitive work elicits a transient instability disorder, regardless of the load handled, exposing the individual to potential injury.

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Section: Discussionmentioning

confidence: 99%

Motor control of lumbar instability following exposure to various cyclic load magnitudes

et al. 2009

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“…The patients who experience stiffness in the neck and local pain when stretching the muscles to the sides may benefit from stretching exercises of the neck 3 times daily. Such exercises are recommended several days after whiplash injury [17] and could be beneficial for the muscular tension that accompanies pathology in many structures in the spine [18]. Some patients will need more specific treatment for their headache.…”

Section: Discussionmentioning

confidence: 99%

Cervicogenic headache after whiplash injury

Drottning

2003

Current Science Inc

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Cervicogenic headache (CEH) with pain radiating from the neck to the forehead is a common finding after whiplash injury. In most whiplash studies, the whiplash headaches are not defined. Post-whiplash CEH typically is a moderate headache with a benign, but often prolonged course. It probably is unilateral and bilateral. Reduced neck mobility does not seem to be as common after whiplash as in chronic CEH in general. Post-whiplash CEH is accompanied by great disability and high use of medication. Although the natural course seems favorable for unilateral CEH during the first postinjury years, some patients will need specific treatment for their headaches. There is a lack of controlled studies to guide practitioners to choose investigations and treatment for chronic CEH.

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“…However, due to the increased muscle effort required to stabilize abnormal postural displacements, the actual increase in load on the spine is much higher [19]. The presence of mechano-sensitive and nociceptive afferent fibers in spinal tissues (intervertebral disc, facet, ligaments, and muscles) [30,42,43,46,50]-and the subsequent neurophysiological research demonstrating the role of such afferent stimulation in pain production [9,10,11] and coordinated neuromuscular stabilization of the spine [28,29,52,53,54,55]-provide a substantial theoretical framework supporting the rationale for goals of treatment regimens to include a reduction of stresses on spinal joints in spinal rehabilitation programs.…”

Section: Variablementioning

confidence: 99%

A non-randomized clinical control trial of Harrison mirror image methods for correcting trunk list (lateral translations of the thoracic cage) in patients with chronic low back pain

et al. 2004

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Spinal trunk list is a common occurrence in clinical practice, but few conservative methods of spinal rehabilitation have been reported. This study is a non-randomized clinical control trial of 63 consecutive retrospective subjects undergoing spinal rehabilitation and 23 prospective volunteer controls. All subjects presented with lateral thoracic-cage-translation posture (trunk list) and chronic low back pain. Initial and follow-up numerical pain rating scales (NRS) and AP lumbar radiographs were obtained after a mean of 11.5 weeks of care (average of 36 visits) for the treatment group and after a mean of 37.5 weeks for the control group. The radiographs were digitized and analyzed for a horizontal displacement of T12 from the second sacral tubercle, verticality of the lumbar spine at the sacral base, and any dextro/levo angle at mid-lumbar spine. Treatment subjects received the Harrison mirror image postural correction methods, which included an opposite trunk-list exercise and a new method of opposite trunk-list traction. Control subjects did not receive spinal rehabilitation therapy, but rather self-managed their back pain. For the treatment group, there were statistically significant improvements (approximately 50%) in all radiographic measurements and a decrease in pain intensity (NRS: 3.0 to 0.8). For the control group, no significant radiographic and NRS differences were found, except in trunk-list displacement of T12 to S1, worsened by 2.4 mm. Mirror image (opposite posture) postural corrective exercises and a new method of trunk-list traction resulted in 50% reduction in trunk list and were associated with nearly resolved pain intensity in this patient population. The findings warrant further study in the conservative treatment of chronic low back pain and spinal disorders.

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Electromyographic Response of the Porcine Multifidus Musculature After Nerve Stimulation

Cited by 171 publications

References 0 publications

Motor control of lumbar instability following exposure to various cyclic load magnitudes

Motor control of lumbar instability following exposure to various cyclic load magnitudes

Cervicogenic headache after whiplash injury

A non-randomized clinical control trial of Harrison mirror image methods for correcting trunk list (lateral translations of the thoracic cage) in patients with chronic low back pain

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