Lumbar multifidus layers stiffness at L5-S1 level in prone and sitting posture measured by shear wave elastography.
J Back Musculoskelet Rehabil
; 37(5): 1241-1248, 2024.
Article
em En
| MEDLINE
| ID: mdl-38820010
ABSTRACT
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.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Técnicas de Imagem por Elasticidade
/
Músculos Paraespinais
/
Postura Sentada
Limite:
Adult
/
Female
/
Humans
/
Male
Idioma:
En
Revista:
J Back Musculoskelet Rehabil
Assunto da revista:
FISIOLOGIA
/
REABILITACAO
Ano de publicação:
2024
Tipo de documento:
Article
País de afiliação:
Brasil
País de publicação:
Holanda