Noninvasive Analysis of Human Neck Muscle Function

Conley, Michael S.; Meyer, Ronald A.; Bloomberg, Jacob J.; Feeback, Daniel L.; Dudley, Gary A.

doi:10.1097/00007632-199512000-00009

Cited by 189 publications

(146 citation statements)

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“…Despite the differing measurement techniques and exercises used, the results of the present study support the findings by Conley et al (1995) and are valuable information for future work that can be seen as a validation of TVI for studying neck muscles.…”

Section: Present Results Compared With Earlier Resultssupporting

confidence: 81%

“…The SSCerv and splenius also showed a signal shift, as did the multifidus in a relative sense, and the trapezius showed less of a shift (Conley et al, 1995). Contrary to TVI, the MRI technique used by Conley et al (1995) could not measure muscular deformation in real time, but measured it as a signal-induced shift.…”

Section: Present Results Compared With Earlier Resultsmentioning

confidence: 96%

“…This activity could explain the result in the present study in which SSCap was found to have high deformation during isometric neck extension. Conley et al (1995) used exercise-induced shifts on T2-weighted MRI to study increased CSA in seven healthy adults performing sets of neck extension exercise against gravity compared to rest, finding that the SSCap has the highest signal-induced shift. The SSCerv and splenius also showed a signal shift, as did the multifidus in a relative sense, and the trapezius showed less of a shift (Conley et al, 1995).…”

Section: Present Results Compared With Earlier Resultsmentioning

confidence: 99%

“…Conley et al (1995) used exercise-induced shifts on T2-weighted MRI to study increased CSA in seven healthy adults performing sets of neck extension exercise against gravity compared to rest, finding that the SSCap has the highest signal-induced shift. The SSCerv and splenius also showed a signal shift, as did the multifidus in a relative sense, and the trapezius showed less of a shift (Conley et al, 1995). Contrary to TVI, the MRI technique used by Conley et al (1995) could not measure muscular deformation in real time, but measured it as a signal-induced shift.…”

Section: Present Results Compared With Earlier Resultsmentioning

confidence: 99%

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A tissue velocity ultrasound imaging investigation of the dorsal neck muscles during resisted isometric extension

2010

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Persons with neck pain exhibit altered patterns of muscle patterning, but limited investigations have been carried out on these alterations or muscle patterning in healthy volunteers. This study investigated the tissue motion of the dorsal neck muscles at the C4 segmental level in 15 healthy subjects during manually resisted head extension. Doppler-based tissue velocity ultrasound imaging (TVI) was used to detect regional tissue deformation, providing indirect evidence of inter-muscular movement patterning. The deep muscles, multifidus and semispinalis, had different muscular movement patterning than the superficial muscles, especially the trapezius muscle. The semispinalis cervicis was the first deformed upon exercise initiation, followed by multifidus and semispinalis capitis. The semispinalis muscles, notably capitis, exhibited a high rate of deformation during the exercise. The trapezius muscle exhibited the least deformation and the lowest deformation rate. In conclusion, TVI provided detailed information on regional tissue activity and muscle movement patterning among the dorsal neck muscles. In future studies, data from patients with neck disorders will have to be matched to data from healthy volunteers in a variety of situations and activities.

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Section: Present Results Compared With Earlier Resultssupporting

confidence: 81%

Section: Present Results Compared With Earlier Resultsmentioning

confidence: 96%

Section: Present Results Compared With Earlier Resultsmentioning

confidence: 99%

Section: Present Results Compared With Earlier Resultsmentioning

confidence: 99%

See 2 more Smart Citations

A tissue velocity ultrasound imaging investigation of the dorsal neck muscles during resisted isometric extension

2010

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“…First, we measured muscle volumes only on T2-weighted axial images because only T2-weighted pulse sequences were used for axial images in the protocol of the previous study. Previous reports have investigated the cervical musculature using T1-weighted [7][8][9]15] or T2-weighted [3,6,28] images. However, it remains controversial which is better for the evaluation of cervical musculature.…”

Section: Discussionmentioning

confidence: 99%

Cross-sectional area of posterior extensor muscles of the cervical spine in asymptomatic subjects: a 10-year longitudinal magnetic resonance imaging study

et al. 2011

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There has been no prospective study on agerelated changes of the extensor muscles of the cervical spine in healthy subjects. This study was conducted to elucidate any association between the changes in cross-sectional area of the extensor muscles of the cervical spine on MRIs and cervical disc degeneration or the development of clinical symptoms. Sixty-two subjects who underwent MR imaging by a 1.5-Tesla machine between 1993 and 1996 as asymptomatic volunteers in a previous study were recruited again 10 years later for this follow-up study. The mean interval between the studies was 11.0 ± 0.7 years. The cross-sectional areas of the multifidus, semispinalis cervicis, semispinalis capitis, and splenius capitis at C3-C4, C4-C5, and C5-C6 intervertebral levels were measured on T2-weighted axial images using Image J 1.42. The mean cross-sectional areas of the deep extensor muscles were 1,396.8 ± 337.6 mm 2 at the C3-C4 level, 1,514.7 ± 381.0 mm 2 at the C4-C5 level, and 1,542.8 ± 373.5 mm 2 at the C5-C6 level in the previous investigation. The cross-sectional areas were 1,498.7 ± 374.4 mm 2 at the C3-C4 level, 1,569.9 ± 390.9 mm 2 at the C4-C5 level, and 1,599.6 ± 364.3 mm 2 at the 10-year follow-up. An increase in the cross-sectional area of the muscles was more frequently observed in subjects in their tens to thirties in the initial study, while a decrease was more frequently observed in those in their forties and older in the initial study. Disc degeneration was not correlated with a change in extensor muscle volume. Development of shoulder stiffness during follow-up was significantly negatively correlated with a change in the cross-sectional area of the deep extensor muscles.

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