Agreement Between Estimative of Shear Modulus in the Superficial and Deep Layers of the Multifidus

Oliveira, Viviane Bastos de; Pereira, Wagner Coelho de Albuquerque; Oliveira, Líliam Fernandes de

doi:10.1007/978-981-13-2119-1_19

XXVI Brazilian Congress on Biomedical Engineering

2019

DOI: 10.1007/978-981-13-2119-1_19

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Agreement Between Estimative of Shear Modulus in the Superficial and Deep Layers of the Multifidus

Viviane Bastos de Oliveira

Wagner Coelho de Albuquerque Pereira

Líliam Fernandes de Oliveira

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2024

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Lumbar multifidus layers stiffness at L5-S1 level in prone and sitting posture measured by shear wave elastography

Bastos de Oliveira,

Albuquerque Brandão,

Coelho de Albuquerque Pereira

et al. 2024

BMR

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BACKGROUND: Multifidus is an important lumbar muscle with distinct superficial and deep fibers responsible for torque production and stabilization, respectively. Its mechanical properties change when transitioning from lying to sitting positions, necessitating enhanced stability. It holds crucial clinical relevance to assess these layers separately, especially in the sitting posture, which demands increased neuromuscular control compared to the prone position. OBJECTIVE: To compare lumbar multifidus stiffness in lying versus sitting postures, analyzing both superficial and deep layers. METHODS: Supersonic Shear Imaging captured elastographic images from 26 asymptomatic volunteers in prone and seated positions. RESULTS: Left multifidus shear modulus in lying: 5.98 ± 1.80/7.96 ± 1.59 kPa (deep/superficial) and sitting: 12.58 ± 4.22/16.04 ± 6.65 kPa. Right side lying: 6.08 ± 1.97/7.80 ± 1.76 kPa and sitting: 13.25 ± 4.61/17.95 ± 7.12 kPa. No side differences (lying p= 0.99, sitting p= 0.43). However, significant inter-postural differences occurred. CONCLUSION: Lumbar multifidus exhibits increased stiffness in sitting, both layers affected, with superior stiffness in superficial versus deep fibers. Applying these findings could enhance assessing multifidus stiffness changes, for classifying tension-induced low back pain stages.

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Lumbar multifidus layers stiffness at L5-S1 level in prone and sitting posture measured by shear wave elastography

Bastos de Oliveira,

Albuquerque Brandão,

Coelho de Albuquerque Pereira

et al. 2024

BMR

View full text Add to dashboard Cite

show abstract

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Agreement Between Estimative of Shear Modulus in the Superficial and Deep Layers of the Multifidus

Cited by 1 publication

References 16 publications

Lumbar multifidus layers stiffness at L5-S1 level in prone and sitting posture measured by shear wave elastography

Lumbar multifidus layers stiffness at L5-S1 level in prone and sitting posture measured by shear wave elastography

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