An observational study in Trunk Extensor Muscle Endurance, sponsored by Deraya University. Not yet recruiting at 1 site in Egypt. Open to participants aged 18 Years to 40 Years. Per ClinicalTrials.gov, last updated 2026-10-27.
Sponsored by Deraya University · Observational
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.
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.
Deraya University is the lead sponsor of 50 studies on the registry; 6 are open to participants now.
Counted across the registry records on this site, refreshed daily.
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.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.
What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.
BMI (body mass index)
Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.
What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
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).
Other: 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).
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.
Time frame: 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.
Time frame: 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.
Time frame: Single assessment session (baseline)
Plan to share: No
No publications or documents are linked to this record.
From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗
This study is not yet recruiting, as verified in Oct 2026. You cannot join it, but the record below documents what was studied.
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Deraya University