Skip to main content
OpenTrials
Enrolling by Invitation

NCT Number: NCT07170813

Effects of Different Hyperextension Braces on Spinal Mobility

This project aims to investigate the effects of different hyperextension braces (Jewett and Spinomed) on spinal mobility and posture. Hyperextension braces are commonly prescribed to limit spinal flexion and regulate load distribution, especially in cases of spinal injuries and postural disorders. However, their objective impact on spinal biomechanics remains unclear.

Purpose and Scope The study will be conducted on 30 healthy participants aged 18-35.

Spinal mobility, posture, and movement analysis will be assessed using a dual inclinometer and the PostureScreen mobile application.

Evaluations will be performed under three conditions:

* Without a brace * With a Jewett brace * With a Spinomed brace (applied in randomized order)

Assessments will include four-direction spinal mobility and postural analysis during daily life activities such as standing, squatting, and single-leg stance.

Hypotheses H0: Hyperextension braces do not restrict spinal mobility. H1: Hyperextension braces restrict spinal mobility. H2: Hyperextension braces do not alter body alignment during movements. H3: Hyperextension braces alter body alignment during movements.

Methodology

The study is designed as a cross-sectional trial.

Each measurement will be repeated three times. Data will be analyzed statistically using ANOVA or Kruskal-Wallis tests depending on distribution.

Ethical approval has been obtained (Yalova University, Protocol No: 2024/4).

Expected Contributions Academic: Results are expected to be presented at the Congress of the International Society of Biomechanics (2025) and published in a high-impact Q1 journal such as Spine.

Clinical: Findings will provide objective data on the effectiveness of hyperextension braces, guiding clinicians and physiotherapists in brace selection.

Educational: The project will also contribute to the training of young researchers, offering hands-on experience in research design and execution

Enrolling by Invitation

Interested in participating?

Request Info

Key information

Conditions

Corset Posture Spinal Mobility

Age range

18 year–35 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

University of Yalova

Yalova, Turkey (Türkiye)

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Healthy young adults aged 18-35.
  • Body mass index (BMI) between 18.5 and 24.9 kg/m2

Exclusion criteria

  • Having experienced pain, discomfort, or discomfort in the upper back, waist, or lower extremities in the last 4 weeks on the Nordic Musculoskeletal System Questionnaire.
  • A score above 20 on the Oswestry Disability Questionnaire.
  • Having a condition related to spinal malalignment identified by a specialist physician (such as scoliosis, hyperkyphosis, hypokyphosis, Schuerman's kyphosis).
  • Having a history of congenital hip dislocation.
  • Having had surgery on the lower extremities or spine.
  • Having a neurological disease or medication use that could cause balance loss.
  • Having engaged in regular exercise in the last 6 months.
  • Having a history of regular brace use in the last 6 months.
  • Having a rheumatic disease affecting the axial skeleton.
  • Having a diagnosis of a disease related to the axial skeleton, such as spondylosis, spondylolisthesis, spinal stenosis, or disc herniation.

Treatment and study plan

Spinal hyperextension brace

Other

The Jewett brace is a hyperextension spinal orthosis designed to limit spinal flexion and promote proper posture by applying anterior and posterior forces to the thoracolumbar spine. It is commonly used for spinal fractures, postural disorders, and to reduce spinal load. Participants will wear the Jewett brace during the intervention phase, and spinal mobility and posture will be assessed.

Primary outcomes

  1. Spinal Mobility (Range of Motion)

    Time frame: 11 months

    Sppinal ROM in flexion, extension, and lateral flexions will be measured using dual inclinometers to assess the impact of each brace.

Secondary outcomes

  1. Postural Alignment Scores via PostureScreen App

    Time frame: 11 months

    Postural alignment will be assessed using the PostureScreen mobile application. Key parameters such as head shift, shoulder asymmetry, and thoracic kyphosis will be recorded to evaluate the impact of each brace condition.

Sponsors and collaborators

Lead sponsor

Mustafa Tahsin Ozer

Other

Registry information

Official study title

The Effect of Different Hyperextension Braces on Spinal Mobility

Important dates

Study start
2025
Primary completion
2025
Study completion
2026
First posted
Sep 12, 2025
Registry last updated
Sep 12, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Related clinical trials

Published trials that share one or more normalized conditions with this study.