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Immediate Effect of Lumbar Mobilization on Paraspinal Muscle Stiffness

2026年9月11日 更新者：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.

調査の概要

状態

募集

条件

介入・治療

詳細な説明

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.

研究の種類

介入

入学 (推定)

25

段階

  • 適用できない

連絡先と場所

このセクションには、調査を実施する担当者の連絡先の詳細と、この調査が実施されている場所に関する情報が記載されています。

研究連絡先

研究場所

  • スロベニア
      • Izola、スロベニア、6310
        • 募集
        • University of Primorska, Faculty of Health Sciences, Izola
        • コンタクト：

参加基準

研究者は、適格基準と呼ばれる特定の説明に適合する人を探します。これらの基準のいくつかの例は、人の一般的な健康状態または以前の治療です。

適格基準

就学可能な年齢

  • 大人

健康ボランティアの受け入れ

はい

説明

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.

研究計画

このセクションでは、研究がどのように設計され、研究が何を測定しているかなど、研究計画の詳細を提供します。

研究はどのように設計されていますか？

デザインの詳細

  • 主な目的：基礎科学
  • 割り当て：ランダム化
  • 介入モデル：クロスオーバー割り当て
  • マスキング：独身

武器と介入

参加者グループ / アーム
介入・治療
実験的：Mobilization-Sham Sequence
Participants receive Maitland Grade III++ central posteroanterior mobilization during the first study visit and sham mobilization during the second study visit.
手順：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.
手順：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.
アクティブコンパレータ：Sham-Mobilization Sequence
Participants receive sham mobilization during the first study visit and Maitland Grade III++ central posteroanterior mobilization during the second study visit.
手順：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.
手順：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.

この研究は何を測定していますか？

主要な結果の測定

結果測定
メジャーの説明
時間枠
Change in Erector Spinae Muscle Stiffness
時間枠：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
時間枠：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

二次結果の測定

結果測定
メジャーの説明
時間枠
Change in Erector Spinae Muscle Stiffness Assessed by Myotonometry
時間枠：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
時間枠：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

協力者と研究者

ここでは、この調査に関係する人々や組織を見つけることができます。

スポンサー

University of Primorska

研究記録日

これらの日付は、ClinicalTrials.gov への研究記録と要約結果の提出の進捗状況を追跡します。研究記録と報告された結果は、国立医学図書館 (NLM) によって審査され、公開 Web サイトに掲載される前に、特定の品質管理基準を満たしていることが確認されます。

主要日程の研究

研究開始 (推定)

2026年9月30日

一次修了 (推定)

2026年11月26日

研究の完了 (推定)

2026年11月30日

試験登録日

最初に提出

2026年9月11日

QC基準を満たした最初の提出物

2026年9月11日

最初の投稿 (実際)

2026年9月17日

学習記録の更新

投稿された最後の更新 (実際)

2026年9月17日

QC基準を満たした最後の更新が送信されました

2026年9月11日

最終確認日

2026年9月1日

詳しくは

本研究に関する用語

キーワード

その他の研究ID番号

  • UP-FHS-PA-SWE-2026

個々の参加者データ (IPD) の計画

個々の参加者データ (IPD) を共有する予定はありますか?

はい

IPD プランの説明

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.

IPD 共有時間枠

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

IPD 共有アクセス基準

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.

IPD 共有サポート情報タイプ

  • STUDY_PROTOCOL
  • SAP
  • ICF

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