CHAMGAP
VERIFIEDPassed the Codex final verification and publication gate. Evidence-verification cutoff: 2026-08-15. AI was used for research and drafting; the existence of all 2 cited sources was verified (1 access-limited, verified via index/summary and marked), followed by blind grading, adversarial audit, and build validation. Methodology v1.0.
Verdict No. 2656 · Search date 2026-08-15 · Methodology v1.0

Abdominal massage,
does it really help with Reduced constipation severity over four weeks in functional chronic constipation?

30-Second Summary
C
Evidence Grade C · 50 · Safety caution
A large four-week symptom difference was observed, but long-term independent replication is absent
Mild abdominal discomfort may occur. Severe pain, vomiting, bleeding, suspected obstruction, recent abdominal surgery, or pregnancy warrants professional review before massage.
What the
research shows
The grade is C with 50 points. A placebo-controlled trial randomized and analyzed all 74 participants, 37 per arm. Constipation severity fell from 43.0 to 13.0 with massage and from 43.3 to 31.2 with detuned ultrasound, with a group-by-time P<.001. The reported standardized effect, d=1.99, was large, but one center, four weeks, and a subjective outcome with distinguishable treatments leave confirmation at C.
What the
ads claim
The result does not establish a permanent cure or replacement for medication. It concerns short-term symptom reduction after therapist-delivered massage alongside lifestyle advice.
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Useful facts when choosing a product

  • Massage averaged 10 minutes three times weekly for four weeks; detuned ultrasound lasted 15 minutes twice weekly.
  • Total CSI changed from 43.0 to 13.0 versus 43.3 to 31.2, and the article reported d=1.99.
  • Unlike an earlier verdict on infant massage and weight, this verdict is limited to symptom severity in adult functional chronic constipation.
ID

Chamgap Semantic Classification Code

Candidate index · review held

X.swedish-style-abdominal-massage-added-to-lifestyle-advice.behavioral.constipation-severity-over-in-functional-chronic-constipation.reduce.MULTI

Behaviors, exposures and policies > Swedish-style abdominal massage added to lifestyle advice > Behavioral delivery > constipation severity over in functional chronic constipation > Reduction claim > Multiple: primary unresolved

An automated migration candidate, not an issued permanent code; exact claim scope remains under review. This machine-generated migration candidate helps retrieval but is not a permanent assignment. The original verdict ID and URL remain authoritative.

Download semantic index (JSON) · Codebook v1

Gap Measurement · Verdict 2656 · C 50
What advertising claims
What independent, higher-quality research supports
△ GAP
01

What the research actually shows

The 2022 single-center trial by Doğan İG, Gürşen C, Akbayrak T, Balaban YH, Vahabov C, Üzelpasacı E, and Özgül S randomized 74 Rome IV functional-constipation patients 1:1 using an online blocked list. The person creating and assigning the list was separate from assessment and treatment, and no participant dropped out. Massage was delivered for 10 minutes three times weekly, while detuned ultrasound lasted 15 minutes twice weekly, for four weeks. Total CSI changed from 43.0 to 13.0 versus 43.3 to 31.2, with d=1.99. Registration was NCT03764995 and the authors reported no conflicts, but a funding statement was not verified, so public independence was not assumed.

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Why this is classified as C (50)

A large short-term symptom difference was limited by a small single-center four-week trial and a subjective outcome with uncertain masking, giving C with 50 points.

Counterpoint. Severe pain, suspected obstruction, recent abdominal surgery, or pregnancy calls for clinical assessment before abdominal pressure is attempted.

Rejudgment record. Cross-check applied — Cross-checked the primary CSI outcome, all 74 analyzed, randomization procedure, treatment contrast, and reported d=1.99 against the original article and registry

Stored scoring profile
EndpointPSymptom or function itself is the target - including patient reports and performance tests
ReplicationR1Single confirmatory trial
IndependenceI1Mixed funding sources
Effect sizeE+Meets the clinically important threshold

Stored derived and displayed grades match; this is not a current recalculation or validity check (C).

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Sub-claim grades by effect

This ingredient is marketed for several effects. A single overall grade blends strong and weak claims together, so each effect is graded separately here. The overall grade reflects the strongest disconfirming or core claim.

Effect (sub-claim)GradeBasis
Reduced constipation severity over four weeksCThe article reported d=1.99 for the CSI change.
Sustained long-term benefit?The trial did not measure durability beyond four weeks.
✓

Cross-check — AI research and Codex final gate

AI was used for research and drafting. Blind grading, adversarial audit, and the methodology boundary rules were then reapplied before Codex performed the final evidence, grade, copy, and build checks. If a grade cannot be narrowed, both evidence positions and their reasons are published.
03

Evidence Table

StudyDesignSampleFundingEndpointResultWeight
Doğan İG, Gürşen C, Akbayrak T, Balaban YH, Vahabov C, Üzelpasacı E, Özgül S. 2022Single-center randomized placebo-controlled trial74 randomized, 37 per group, with all 74 in the primary analysisFunding statement not verified; authors reported no conflictsTotal Constipation Severity Instrument score at four weeks43.0 to 13.0 versus 43.3 to 31.2; group-by-time P<.001; d=1.99Large short-term effect limited by small size, short follow-up, and uncertain masking
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Receipt — 2 References

Of 2 cited sources, 1 had limited original-page access (blocked or summary-only) and were verified via index/summary, marked partial; the rest were verified at the original page. As of 2026-08-15.

Doğan İG, Gürşen C, Akbayrak T, Balaban YH, Vahabov C, Üzelpasacı E, Özgül S. Abdominal Massage in Functional Chronic Constipation: A Randomized Placebo-Controlled Trial. Phys Ther. 2022;102(7):pzac058. PMID: 35554601. DOI: 10.1093/ptj/pzac058. NCT03764995.
partial
Cohen J. Statistical Power Analysis for the Behavioral Sciences. 2nd ed. Hillsdale, NJ: Lawrence Erlbaum Associates; 1988.
checked
Research and draft: AI used · Cross-check: blind grading and adversarial audit
Final verification and publication gate: Codex · Evidence date: 2026-08-15 · Corrections: none
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Cite this verdict

Abdominal massage x short-term functional-constipation relief Evidence Grade C card
[Chamgap] Abdominal massage x short-term functional-constipation relief — Evidence Grade C·50. 2 cited sources checked. Source: https://chamgap.com/en/verdicts/gut/abdominal-massage-functional-chronic-constipation-severity/ · CC BY 4.0

CC BY 4.0 — free to use with attribution; do not distort grades, numbers, or verdict meaning.

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What this document does and does not do

Chamgap is an information source. It reports what research has and has not confirmed; it does not tell readers what to take or buy. That decision belongs to readers and, when needed, medical or legal professionals. This verdict reflects literature available up to the search date and may change as new research appears. Nothing here is medical advice.
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