Effects of Segmental Stabilization on the Anticipatory Postural Adjustment of Subjects With Lumbar Pain

Overview

This study aims to verify the effects of a segmental stabilization exercise program on the anticipatory postural adjustment of subjects with chronic lumbar pain. The effects will be assessed by means of superficial electromyography focused on the registry of the onset of multifidius and deltoid (anterior and posterior) activity during a repetitive shoulder flexion/extension.

Study Type

  • Study Type: Interventional
  • Study Design
    • Allocation: Randomized
    • Intervention Model: Parallel Assignment
    • Primary Purpose: Treatment
    • Masking: Double (Investigator, Outcomes Assessor)
  • Study Primary Completion Date: September 2016

Interventions

  • Other: Segmental Stabilization Exercises
    • The stabilization program focuses on the reestablishment of motor control and coordination between deep and superficial trunk muscles. The exercise program is based on the following criteria progression: 1) Precise contraction of the transverse abdominal and multifidus muscles, keeping the lumbar spine in a neutral position (as the middle way between maximum flexion and extension, repeated three times); 2) Keep the neutral position for 10 repetitions of 10 seconds; 3) Perform exercises with lower limbs in different postures.
  • Other: Home Exercises
    • Home exercises include passive stretching and active mobilization of the spine.

Arms, Groups and Cohorts

  • Experimental: Segmental Stabilization Group
    • Patients receiving segmental stabilization exercises.
  • Active Comparator: Control Group
    • Patients receiving home exercises.

Clinical Trial Outcome Measures

Primary Measures

  • Anticipatory Postural Adjustment by means of Electromyography
    • Time Frame: change from pre to post-treatment (8 weeks)
    • Assessed by means of superficial electromyography

Secondary Measures

  • Disability level via the Oswestry Low Back Pain Questionnaire
    • Time Frame: change from pre to post-treatment (8 weeks)
  • Fear of pain and avoidance of physical activity via the Fear-avoidance beliefs Questionnaire
    • Time Frame: change from pre to post-treatment (8 weeks)
  • Prognosis or risk of poor clinical outcome via the STarT Back Screening Tool
    • Time Frame: change from pre to post-treatment (8 weeks)
  • Pain level via visual analogue scale
    • Time Frame: change from pre to post-treatment (8 weeks)

Participating in This Clinical Trial

Inclusion Criteria

  • women aged between 18 and 65 years old – chronic lumbar pain (at least 3 months) – average pain intensity of ≥3 on a 10-point scale Exclusion Criteria:

  • presence of red flags (i.e.,tumor, known fractures, diagnosed inflammatory joint disease, etc); – history of back surgery – pregnancy – less than 3 months of therapeutic treatment (physiotherapy) for low back pain

Gender Eligibility: Female

Minimum Age: 18 Years

Maximum Age: 65 Years

Are Healthy Volunteers Accepted: No

Investigator Details

  • Lead Sponsor
    • Federal University of Health Science of Porto Alegre
  • Provider of Information About this Clinical Study
    • Principal Investigator: Aline de Souza Pagnussat, PhD – Federal University of Health Science of Porto Alegre

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