Esta página foi traduzida automaticamente e a precisão da tradução não é garantida. Por favor, consulte o versão em inglês para um texto fonte.

Immediate Effect of Lumbar Mobilization on Paraspinal Muscle Stiffness

11 de setembro de 2026 atualizado por: Žiga Kozinc, University of Primorska

Immediate Effect of Maitland Grade III++ Central Posteroanterior Mobilization on Erector Spinae and Multifidus Muscle Stiffness in Healthy Adults: A Randomized Crossover Trial

This randomized controlled crossover study will investigate the immediate effect of central posteroanterior lumbar mobilization on the intrinsic stiffness of the erector spinae and multifidus muscles in healthy adults without low back pain. Twenty-four participants will complete two experimental visits in randomized order. During one visit, participants will receive Maitland Grade III++ central posteroanterior mobilization at the L4 vertebral level, while during the other visit they will receive a sham mobilization condition involving gentle rhythmic pressure. Muscle stiffness will be assessed using shear wave elastography immediately before and after each intervention.

Visão geral do estudo

Status

Recrutamento

Condições

Intervenção / Tratamento

Descrição detalhada

The study will be designed as a randomized controlled crossover trial to investigate the immediate effects of manual spinal mobilization on lumbar paraspinal muscle stiffness in healthy adults without low back pain. Each participant will attend two separate study visits and will receive both experimental conditions in a randomized order.

In the experimental condition, Maitland Grade III++ central posteroanterior mobilization will be applied over the spinous process of L4. The intervention will consist of three 60-second sets of passive rhythmic oscillatory pressures performed at approximately 2 Hz, with 30-second rest periods between sets. In the control condition, participants will receive a sham mobilization presented as a Grade I mobilization technique. The sham intervention will follow the same timing structure but will consist of gentle rhythmic pressure over the L4 spinous process.

Intrinsic muscle stiffness of the right erector spinae and multifidus muscles will be assessed using shear wave elastography. Three measurements will be obtained immediately before and after each intervention, and the mean value will be expressed in kilopascals. Measurements will be performed in a standardized prone position at the L4-L5 level.

Tipo de estudo

Intervencional

Inscrição (Estimado)

25

Estágio

  • Não aplicável

Contactos e Locais

Esta seção fornece os detalhes de contato para aqueles que conduzem o estudo e informações sobre onde este estudo está sendo realizado.

Contato de estudo

Locais de estudo

  • Eslovênia
      • Izola, Eslovênia, 6310
        • Recrutamento
        • University of Primorska, Faculty of Health Sciences, Izola
        • Contato:

Critérios de participação

Os pesquisadores procuram pessoas que se encaixem em uma determinada descrição, chamada de critérios de elegibilidade. Alguns exemplos desses critérios são a condição geral de saúde de uma pessoa ou tratamentos anteriores.

Critérios de elegibilidade

Idades elegíveis para estudo

  • Adulto

Aceita Voluntários Saudáveis

Sim

Descrição

Inclusion Criteria:

  • Men and women aged 21 to 38 years.
  • Resident of the Republic of Slovenia.
  • No current low back pain.
  • No contraindications to lumbar manual mobilization.
  • Ability to assume and maintain the required prone testing position.
  • Provision of written informed consent.

Exclusion Criteria:

  • Current low back pain.
  • Spondylolisthesis.
  • Severe osteoporosis.
  • Spinal stenosis.
  • Lumboischialgia or other significant structural spinal deformity.
  • Fibromyalgia.
  • Recent spinal surgery or lumbar spinal fixation.
  • Cauda equina syndrome.
  • Nerve root compression associated with neurological deficits.
  • Malignancy.
  • Recent relevant trauma.
  • Joint instability.
  • Active rheumatoid arthritis.
  • Acute local or systemic infection.
  • Long-term local corticosteroid use.
  • Inability to assume or maintain the required testing position.

Plano de estudo

Esta seção fornece detalhes do plano de estudo, incluindo como o estudo é projetado e o que o estudo está medindo.

Como o estudo é projetado?

Detalhes do projeto

  • Finalidade Principal: Ciência básica
  • Alocação: Randomizado
  • Modelo Intervencional: Atribuição cruzada
  • Mascaramento: Solteiro

Armas e Intervenções

Grupo de Participantes / Braço
Intervenção / Tratamento
Experimental: Mobilization-Sham Sequence
Participants receive Maitland Grade III++ central posteroanterior mobilization during the first study visit and sham mobilization during the second study visit.
Procedimento: Maitland Grade III++ Central Posteroanterior Mobilization
Central posteroanterior mobilization is applied over the L4 spinous process with the participant in a prone position. The intervention consists of three 60-second sets of passive rhythmic oscillatory pressures performed at approximately 2 Hz, with 30-second rest periods between sets, resulting in approximately 360 oscillatory pressures in total.
Procedimento: Sham Lumbar Mobilization
Sham mobilization is applied over the L4 spinous process with the participant in a prone position. The procedure consists of three 60-second sets of gentle rhythmic pressures with 30-second rest periods between sets. The timing and therapist contact are matched to the experimental condition, while substantial mobilization pressure is avoided.
Comparador Ativo: Sham-Mobilization Sequence
Participants receive sham mobilization during the first study visit and Maitland Grade III++ central posteroanterior mobilization during the second study visit.
Procedimento: Maitland Grade III++ Central Posteroanterior Mobilization
Central posteroanterior mobilization is applied over the L4 spinous process with the participant in a prone position. The intervention consists of three 60-second sets of passive rhythmic oscillatory pressures performed at approximately 2 Hz, with 30-second rest periods between sets, resulting in approximately 360 oscillatory pressures in total.
Procedimento: Sham Lumbar Mobilization
Sham mobilization is applied over the L4 spinous process with the participant in a prone position. The procedure consists of three 60-second sets of gentle rhythmic pressures with 30-second rest periods between sets. The timing and therapist contact are matched to the experimental condition, while substantial mobilization pressure is avoided.

O que o estudo está medindo?

Medidas de resultados primários

Medida de resultado
Descrição da medida
Prazo
Change in Erector Spinae Muscle Stiffness
Prazo: Immediately before and immediately after each intervention session
Intrinsic stiffness of the right erector spinae muscle is assessed using shear wave elastography and expressed as shear modulus in kilopascals (kPa). Three measurements are obtained at each time point and averaged. The outcome is the change from the pre-intervention to the immediate post-intervention measurement.
Immediately before and immediately after each intervention session
Change in Multifidus Muscle Stiffness
Prazo: Immediately before and immediately after each intervention session
Intrinsic stiffness of the right multifidus muscle is assessed using shear wave elastography and expressed as shear modulus in kilopascals (kPa). Three measurements are obtained at each time point and averaged. The outcome is the change from the pre-intervention to the immediate post-intervention measurement.
Immediately before and immediately after each intervention session

Medidas de resultados secundários

Medida de resultado
Descrição da medida
Prazo
Change in Erector Spinae Muscle Stiffness Assessed by Myotonometry
Prazo: Immediately before and immediately after each intervention session
Myotonometry will be used to assess mechanical muscle stiffness at the same measurement location used for the erector spinae shear wave elastography assessment. Measurements will be performed immediately before and after each intervention condition. The outcome will be the change in muscle stiffness from pre-intervention to immediate post-intervention.
Immediately before and immediately after each intervention session
Change in Multifidus Muscle Stiffness Assessed by Myotonometry
Prazo: Immediately before and immediately after each intervention session
Myotonometry will be used to assess mechanical muscle stiffness at the same measurement location used for the multifidus shear wave elastography assessment. Measurements will be performed immediately before and after each intervention condition. The outcome will be the change in muscle stiffness from pre-intervention to immediate post-intervention.
Immediately before and immediately after each intervention session

Colaboradores e Investigadores

É aqui que você encontrará pessoas e organizações envolvidas com este estudo.

Patrocinador

University of Primorska

Datas de registro do estudo

Essas datas acompanham o progresso do registro do estudo e os envios de resumo dos resultados para ClinicalTrials.gov. Os registros do estudo e os resultados relatados são revisados ​​pela National Library of Medicine (NLM) para garantir que atendam aos padrões específicos de controle de qualidade antes de serem publicados no site público.

Datas Principais do Estudo

Início do estudo (Estimado)

30 de setembro de 2026

Conclusão Primária (Estimado)

26 de novembro de 2026

Conclusão do estudo (Estimado)

30 de novembro de 2026

Datas de inscrição no estudo

Enviado pela primeira vez

11 de setembro de 2026

Enviado pela primeira vez que atendeu aos critérios de CQ

11 de setembro de 2026

Primeira postagem (Real)

17 de setembro de 2026

Atualizações de registro de estudo

Última Atualização Postada (Real)

17 de setembro de 2026

Última atualização enviada que atendeu aos critérios de controle de qualidade

11 de setembro de 2026

Última verificação

1 de setembro de 2026

Mais Informações

Termos relacionados a este estudo

Palavras-chave

Outros números de identificação do estudo

  • UP-FHS-PA-SWE-2026

Plano para dados de participantes individuais (IPD)

Planeja compartilhar dados de participantes individuais (IPD)?

SIM

Descrição do plano IPD

De-identified individual participant data underlying the results reported in subsequent publications may be made available upon reasonable request to the study investigators. Data will be shared for scientifically justified purposes following approval by the investigators and, where appropriate, completion of a data-sharing agreement.

Prazo de Compartilhamento de IPD

Data will be available following publication of the main study results and will remain available for at least 5 years.

Critérios de acesso de compartilhamento IPD

Researchers with a scientifically justified proposal may request access. Requests will be reviewed by the study investigators and data will be shared in de-identified form subject to applicable ethical and data-protection requirements.

Tipo de informação de suporte de compartilhamento de IPD

  • PROTOCOLO DE ESTUDO
  • SEIVA
  • CIF

Informações sobre medicamentos e dispositivos, documentos de estudo

Estuda um medicamento regulamentado pela FDA dos EUA

Não

Estuda um produto de dispositivo regulamentado pela FDA dos EUA

Não

Essas informações foram obtidas diretamente do site clinicaltrials.gov sem nenhuma alteração. Se você tiver alguma solicitação para alterar, remover ou atualizar os detalhes do seu estudo, entre em contato com register@clinicaltrials.gov. Assim que uma alteração for implementada em clinicaltrials.gov, ela também será atualizada automaticamente em nosso site .

Se inscrever