Trunk Extensor Muscle EnduranceNCT07894432
Correlation Between Trunk Muscles Endurance and Dynamic Balance in Sacroiliac Joint Dysfunction
An observational study of Trunk Extensor Muscle Endurance, run by Deraya University at 1 site in Egypt.
Trial summary
This cross-sectional observational study aims to investigate the correlation between trunk muscle endurance and dynamic balance in patients with sacroiliac joint dysfunction (SIJD). Read more about this study
- Who is it for?
- Ages 18 to 40 years
- Conditions the study is for
- Trunk Extensor Muscle Endurance
- What is being tested?
- Patients with Sacroiliac Joint Dysfunction
- How many people
- 46 participants
- Where
- 1 siteEgypt
- Study dates
- 15 Nov 2026to 15 Mar 2027
- Phase
- Observational
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 40 years
- All sexes
- No healthy volunteers
- Adult
Study population: The study population will consist of 46 adult patients (aged 18-40 years) with a confirmed diagnosis of sacroiliac joint dysfunction, defined by at least three positive pain provocation tests and a history of lower back or buttock pain for at least six weeks. Participants will be recruited from outpatient physical therapy clinics and will be excluded if they have a history of spinal surgery, inflammatory arthropathies, neurological deficits, or a BMI outside the 18.5-24.9 kg/m² range.
Who may be able to join
- Patients diagnosed with sacroiliac joint dysfunction (SIJD) confirmed by at least 3 positive pain provocation tests (FABER, compression, distraction, thigh thrust, and Gaenslen tests).
- Aged 18 to 40 years.
- Body mass index (BMI) ranging from 18.5 to 24.9 kg/m².
- Presence of lower back or buttock pain for at least 6 weeks before study enrollment.
Who cannot join
- History of spinal surgery, fracture, or structural deformity.
- Inflammatory arthropathies (e.g., ankylosing spondylitis).
- Neurological deficits or radiculopathy.
- Pregnancy.
- Severe cognitive impairment preventing participation in testing.
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
Egypt1 site
Clinics, faculty of physical therapy, Deraya University
Minya, Minya Governorate, 05673
Aliaa Hussien, 01003041632, aliaagamal2622@gmail.com
soad.ali@deraya.edu.eg Ali, PhD, 01003621641, soad.ali@deraya.edu.eg
About this study
Official title: Correlation Between Trunk Muscles Endurance and Dynamic Balance in Patients With Sacroiliac Joint Dysfunction: A Cross-Sectional Study
This cross-sectional observational study aims to investigate the correlation between trunk muscle endurance and dynamic balance in patients with sacroiliac joint dysfunction (SIJD). Trunk muscle endurance will be assessed using standardized clinical tests (prone isometric chest raise test and trunk flexor endurance test), and dynamic balance will be evaluated using the Biodex Balance System.
Read the detailed description
The sacroiliac joint allows limited movement and has an important biomechanical role in transferring loads between the spine and lower extremities and contributing to pelvic stability during functional activities. Sacroiliac joint dysfunction may be associated with pain, altered lumbopelvic biomechanics, and impaired neuromuscular control. Trunk muscle endurance represents the capacity of the trunk musculature to maintain a sustained contraction and resist fatigue. Dynamic balance refers to the ability to maintain postural stability during movement or when the body's center of mass is displaced. In patients with sacroiliac joint dysfunction, pain and altered lumbopelvic mechanics may interfere with trunk muscle performance and postural control. Reduced trunk muscle endurance may consequently be associated with impaired dynamic balance. However, the relationship between trunk muscle endurance and dynamic balance in patients with sacroiliac joint dysfunction requires further investigation. Therefore, this study will assess trunk muscle endurance using standardized endurance tests and evaluate dynamic balance using the Biodex Balance System. The study will investigate whether a correlation exists between trunk muscle endurance and dynamic balance in patients with sacroiliac joint dysfunction.
- Conditions
- Trunk Extensor Muscle Endurance
- Being tested
- Patients with Sacroiliac Joint Dysfunction
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Patients with Sacroiliac Joint DysfunctionOther
A single group of 46 patients diagnosed with sacroiliac joint dysfunction (SIJD) confirmed by at least 3 positive pain provocation tests (FABER, compression, distraction, thigh thrust, and Gaenslen tests). Participants will undergo a single assessment session to evaluate trunk muscle endurance (prone isometric chest raise test and trunk flexor endurance test) and dynamic balance (Biodex Balance System).
| Study group | Role | What they receive |
|---|---|---|
| Patients with Sacroiliac Joint Dysfunction | A single group of 46 patients diagnosed with sacroiliac joint dysfunction (SIJD) confirmed by at least 3 positive pain provocation tests (FABER, compression, distraction, thigh thrust, and Gaenslen tests). Participants will undergo a single assessment session to evaluate trunk muscle endurance (prone isometric chest raise test and trunk flexor endurance test) and dynamic balance (Biodex Balance System). Receives: Other: Patients with Sacroiliac Joint Dysfunction |
What is being measured
The primary outcome is the main question the study is designed to answer.
Trunk Extensor Muscle Endurance
Assessed using the prone isometric chest raise test (Ito test). This test evaluates the isometric endurance of the back extensor muscles.
Measured: Single assessment session (baseline)
Trunk Flexor Muscle Endurance
Assessed using the Trunk Flexor Endurance Test (TFT) to evaluate the endurance of the anterior musculature of the core.
Measured: Single assessment session (baseline)
Dynamic Balance (Overall Stability Index)
Assessed using the Biodex Balance System (BSS SD, Biodex Inc., Shirley, NY, USA). The Overall Stability Index (OSI) measures the overall variance of platform displacement in degrees from level.
Measured: Single assessment session (baseline)
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted26 Oct 2026
- Study start15 Nov 2026 (estimated)
- Primary completion15 Feb 2027 (estimated)
- Study completion15 Mar 2027 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Trunk Extensor Muscle EnduranceStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Case only
- Time perspective
- Cross-sectional
- Enrolment
- 46 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Deraya University
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07894432
- Sponsor's protocol ID
- PT-SIJD-2026-01
- Status last verified
- Oct 2026
- First submitted
- 19 Oct 2026
- Last updated
- 27 Oct 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 27 Oct 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Correlation Between Trunk Muscles Endurance and Dynamic Balance in Patients With Sacroiliac Joint Dysfunction: A Cross-Sectional Study
- ClinicalTrials.gov ID
- NCT07894432
- Acronym / sponsor ID
- PT-SIJD-2026-01
- Conditions
- Trunk Extensor Muscle Endurance
- Study type
- Observational
- Recruitment status
- Not yet recruiting
- Enrolment
- 46 participants (estimated)
- Lead sponsor
- Deraya UniversityUniversity, hospital or other
- Study start
- 15 Nov 2026 (estimated)
- Primary completion
- 15 Feb 2027 (estimated)
- Study completion
- 15 Mar 2027 (estimated)
- First posted
- 26 Oct 2026 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This cross-sectional observational study aims to investigate the correlation between trunk muscle endurance and dynamic balance in patients with sacroiliac joint dysfunction (SIJD). Trunk muscle endurance will be assessed using standardized clinical tests (prone isometric chest raise test and trunk flexor endurance test), and dynamic balance will be evaluated using the Biodex Balance System.
Detailed description
The sacroiliac joint allows limited movement and has an important biomechanical role in transferring loads between the spine and lower extremities and contributing to pelvic stability during functional activities. Sacroiliac joint dysfunction may be associated with pain, altered lumbopelvic biomechanics, and impaired neuromuscular control. Trunk muscle endurance represents the capacity of the trunk musculature to maintain a sustained contraction and resist fatigue. Dynamic balance refers to the ability to maintain postural stability during movement or when the body's center of mass is displaced. In patients with sacroiliac joint dysfunction, pain and altered lumbopelvic mechanics may interfere with trunk muscle performance and postural control. Reduced trunk muscle endurance may consequently be associated with impaired dynamic balance. However, the relationship between trunk muscle endurance and dynamic balance in patients with sacroiliac joint dysfunction requires further investigation. Therefore, this study will assess trunk muscle endurance using standardized endurance tests and evaluate dynamic balance using the Biodex Balance System. The study will investigate whether a correlation exists between trunk muscle endurance and dynamic balance in patients with sacroiliac joint dysfunction.
Study design
- Observational model
- Case only
- Time perspective
- Cross-sectional
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Patients with Sacroiliac Joint Dysfunction | – | Other: Patients with Sacroiliac Joint DysfunctionA single group of 46 patients diagnosed with sacroiliac joint dysfunction (SIJD) confirmed by at least 3 positive pain provocation tests (FABER, compression, distraction, thigh thrust, and Gaenslen tests). Participants will undergo a single assessment session to evaluate trunk muscle endurance (prone isometric chest raise test and trunk flexor endurance test) and dynamic balance (Biodex Balance System). |
Who may qualify
- Ages
- 18 to 40 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult
- Study population
- The study population will consist of 46 adult patients (aged 18-40 years) with a confirmed diagnosis of sacroiliac joint dysfunction, defined by at least three positive pain provocation tests and a history of lower back or buttock pain for at least six weeks. Participants will be recruited from outpatient physical therapy clinics and will be excluded if they have a history of spinal surgery, inflammatory arthropathies, neurological deficits, or a BMI outside the 18.5-24.9 kg/m² range.
Key inclusion criteria (4 listed)
- Patients diagnosed with sacroiliac joint dysfunction (SIJD) confirmed by at least 3 positive pain provocation tests (FABER, compression, distraction, thigh thrust, and Gaenslen tests).
- Aged 18 to 40 years.
- Body mass index (BMI) ranging from 18.5 to 24.9 kg/m².
- Presence of lower back or buttock pain for at least 6 weeks before study enrollment.
Key exclusion criteria (5 listed)
- History of spinal surgery, fracture, or structural deformity.
- Inflammatory arthropathies (e.g., ankylosing spondylitis).
- Neurological deficits or radiculopathy.
- Pregnancy.
- Severe cognitive impairment preventing participation in testing.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Patients with Sacroiliac Joint DysfunctionA single group of 46 patients diagnosed with sacroiliac joint dysfunction (SIJD) confirmed by at least 3 positive pain provocation tests (FABER, compression, distraction, thigh thrust, and Gaenslen tests). Participants will undergo a single assessment session to evaluate trunk muscle endurance (prone isometric chest raise test and trunk flexor endurance test) and dynamic balance (Biodex Balance System). | Other | Patients with Sacroiliac Joint Dysfunction |
Primary outcome
Trunk Extensor Muscle Endurance
Time frame: Single assessment session (baseline)
Assessed using the prone isometric chest raise test (Ito test). This test evaluates the isometric endurance of the back extensor muscles.
Trunk Flexor Muscle Endurance
Time frame: Single assessment session (baseline)
Assessed using the Trunk Flexor Endurance Test (TFT) to evaluate the endurance of the anterior musculature of the core.
Dynamic Balance (Overall Stability Index)
Time frame: Single assessment session (baseline)
Assessed using the Biodex Balance System (BSS SD, Biodex Inc., Shirley, NY, USA). The Overall Stability Index (OSI) measures the overall variance of platform displacement in degrees from level.
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 27 Oct 2026.
- Individual participant dataSharing planned: No
Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Trunk Extensor Muscle Endurance, run by Deraya University at 1 site in Egypt.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 4 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: opening soon, as of the sponsor's last update on 27 Oct 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Egypt. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Aliaa Hussien (01003041632, aliaagamal2622@gmail.com), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Trunk Extensor Muscle Endurance (time frame: Single assessment session (baseline)). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 27 Oct 2026; AzTrials last refreshed its copy on 6 Nov 2026.