An observational study in Constipation and Irritable Bowel Disease, sponsored by Saglik Bilimleri Universitesi. Recruiting at 1 site in Turkey (Türkiye). Open to participants aged 18 Years to 45 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-10-21.
Sponsored by Saglik Bilimleri Universitesi · Observational
This cross-sectional, observational, controlled comparative study aims to investigate the relationship between interoception and postural control in individuals with constipation-predominant irritable bowel syndrome (IBS-C) and to compare the findings with those of healthy individuals. Interoception will be assessed using the Multidimensional Assessment of Interoceptive Awareness-2 (MAIA-2), postural characteristics will be evaluated using the Corbin Posture Analysis, and stool type in the IBS-C group will be assessed using the Bristol Stool Scale.
This study is designed as a cross-sectional, observational, controlled comparative study. The study population will consist of individuals aged 18-45 years with a diagnosis of constipation-predominant irritable bowel syndrome (IBS-C) and healthy volunteers with similar age and sex characteristics.
The sample size was calculated using G*Power 3.1.9.7 based on a medium effect size (d=0.50), a significance level of 5% (α=0.05), and a statistical power of 80% (1-β=0.80). A total of 128 participants, with at least 64 participants in each group, are planned to be included.
After written informed consent is obtained, participants will complete a sociodemographic information form. Interoceptive awareness will be assessed using the Multidimensional Assessment of Interoceptive Awareness-2 (MAIA-2). Stool type will be evaluated using the Bristol Stool Scale in the IBS-C group, and posture will be assessed in all participants using the Corbin Posture Analysis.
The collected data will be analyzed using descriptive statistics, tests of normality, between-group comparison tests, correlation analyses, and multivariable regression analyses. Statistical significance will be set at p\<0.05.
1,040 studies on the registry are indexed under Constipation; 139 are open to participants now.
This study's planned enrollment of 128 is above the median of 101 across 133 observational studies indexed under Constipation.
Browse Constipation studies →Saglik Bilimleri Universitesi is the lead sponsor of 447 studies on the registry; 138 are open to participants now.
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Individuals aged 18-45 years with a clinical diagnosis of constipation-predominant irritable bowel syndrome (IBS-C) and healthy volunteers with similar age and sex characteristics.
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Exclusion Criteria:
Individuals aged 18-45 years with a clinical diagnosis of constipation-predominant irritable bowel syndrome (IBS-C).
Healthy volunteers aged 18-45 years with similar age and sex characteristics to the IBS-C group and with no history of gastrointestinal disease.
Interoceptive Awareness
Interoceptive awareness will be assessed using the Multidimensional Assessment of Interoceptive Awareness, Version 2 (MAIA-2), a 37-item self-report questionnaire with 8 subscales (Noticing, Not-Distracting, Not-Worrying, Attention Regulation, Emotional Awareness, Self-Regulation, Body Listening, Trusting). Each item is rated from 0 (never) to 5 (always), and the unit of measure is the mean score of each subscale (range 0 to 5). Higher scores indicate better interoceptive awareness.
Time frame: Baseline (single assessment at study enrollment).
Postural Characteristics
Posture will be assessed by an examiner using the Corbin Posture Analysis, an observational posture evaluation in which body segments are rated against a standard postural alignment. The unit of measure is the total posture score (range: 0 to 20). Higher scores indicate worse posture.
Time frame: Baseline (single assessment at study enrollment).
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 ↗
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