CHAMGAP
VERIFIEDPassed the Codex final verification and publication gate. Evidence-verification cutoff: 2026-08-01. AI was used for research and drafting; the existence of all 3 cited sources was verified at the original page, followed by blind grading, adversarial audit, and build validation. Methodology v1.0.
Verdict No. 1927 · Search date 2026-08-01 · Methodology v1.0

Tai chi,
does it really help with Improvement in fibromyalgia symptom burden, pain, fatigue, sleep, and function?

30-Second Summary
C
Evidence Grade C · 56 · Safety acceptable
Symptom and function signals were replicated, but self-report and small-study limitations remain
Trials did not identify a serious adverse-event signal, and tai chi was generally well tolerated. People with balance impairment or severe pain may need movement and intensity modification.
What the
research shows
The grade is C. In the 226-participant intention-to-treat trial, the prespecified 24-week FIQR primary outcome favored pooled tai chi over the active aerobic-exercise comparator by 5.5 points (95% CI 0.6 to 10.4, P=0.03). By week 52 the pooled benefit was smaller and some analyses were no longer significant. A six-trial synthesis was also positive, but unblinded subjective outcomes and small trials limit certainty, giving C with 56 points.
What the
ads claim
The evidence does not mean every patient improves substantially or that tai chi replaces medical care. Existing verdict 1653 is B with 72 points for insomnia, verdict 1713 is C with 58 points for knee osteoarthritis, and verdict 1812 is A with 86 points for fall prevention; all address different indications.
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Useful facts when choosing a product

  • The pivotal comparison was tai chi versus aerobic exercise, not tai chi versus no care.
  • All 226 randomized participants were included in intention-to-treat analyses, with 24-week FIQR change prespecified as primary.
  • The 8.1-point FIQ threshold was developed for within-person change, not validated as a between-group mean-difference rule.
ID

Chamgap Semantic Classification Code

Candidate index · review held

X.tai-chi.behavioral.fibromyalgia-symptom-burden-pain-fatigue-sleep-and-function.improve.MULTI

Behaviors, exposures and policies > Tai chi > Behavioral delivery > fibromyalgia symptom burden, pain, fatigue, sleep, and function > Improvement 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 1927 · C 56
What advertising claims
What independent, higher-quality research supports
△ GAP
01

What the research actually shows

Wang 2018 included all 226 randomized adults in intention-to-treat analyses, comparing 151 across four tai chi regimens with 75 assigned to active aerobic exercise. The 24-week FIQR difference favored tai chi by 5.5 points (95% CI 0.6 to 10.4, P=0.03). At week 52 the pooled advantage was smaller; only the most intensive 24-week twice-weekly regimen retained a significant FIQR difference of 11.1 points (2.7 to 19.6), P=0.01, while several other analyses were not significant. Cheng 2019 included six trials and 657 participants, reporting FIQ/FIQR SMD -0.61 (-0.90 to -0.31), but its education, wait-list, and usual-care controls must be distinguished from the active aerobic comparator.

02

Why this is classified as C (56)

Independent trials and meta-analysis showed a moderate positive direction, but unblinded self-reported outcomes and small-study dependence create two design limitations, giving C with 56 points.

Counterpoint. Tai chi remains a reasonable low-burden adjunct, while magnitude can vary by regimen and comparator.

Rejudgment record. Cross-check applied — Positive primary FIQR and independent pooled evidence limited by unblinded subjective outcomes and small trials

Stored scoring profile
EndpointPSymptom or function itself is the target - including patient reports and performance tests
ReplicationR2Independently replicated across trials
IndependenceI2Decisive evidence is publicly or non-profit funded
Effect sizeE+Meets the clinically important threshold

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

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
Improvement in overall symptom and functional burdenCPrimary FIQR and pooled FIQ/FIQR were positive, with overlapping design limitations.
Improvement in painCPooled SMD was -0.88, but the interval was wide and small-study dependence was substantial.
Improvement in sleep and fatigueCPooled estimates were positive, but unblinded self-report and small samples remain limiting.

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
Wang et al. 2018Randomized comparative-effectiveness trial of four tai chi regimens versus aerobic exercise226 randomized and analyzed by intention to treat, 151/75Public NIH support including NCCIH and NIAMSPrimary change in FIQR at week 24Pooled tai chi improved 5.5 points more (95% CI 0.6 to 10.4, P=0.03).Largest independent ITT trial; unblinded self-report with active comparator
Cheng et al. 2019 meta-analysisSystematic review and meta-analysis of randomized trialsSix trials and 657 participantsComponent trials came from multiple independent teams, largely with public supportFIQ/FIQR, pain, sleep, and fatigue at 12 to 16 weeksFIQ/FIQR SMD -0.61 (95% CI -0.90 to -0.31); pain -0.88 (-1.58 to -0.18).Pooled independent replication limited by small subjective-outcome trials
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Receipt — 3 References

All 3 cited sources were verified for existence at the original page (as of 2026-08-01).

Wang C, Schmid CH, Fielding RA, et al. Effect of tai chi versus aerobic exercise for fibromyalgia. BMJ. 2018;360:k851. DOI: 10.1136/bmj.k851.
checked
Cheng CA, Chiu YW, Wu D, Kuan YC, Chen SN, Tam KW. Effectiveness of Tai Chi on fibromyalgia patients. Complement Ther Med. 2019;46:1-8. PMID: 31519264. DOI: 10.1016/j.ctim.2019.07.007.
checked
Bennett RM, Bushmakin AG, Cappelleri JC, Zlateva G, Sadosky AB. Minimal clinically important difference in the fibromyalgia impact questionnaire. J Rheumatol. 2009;36:1304-1311. PMID: 19369473.
checked
Research and draft: AI used · Cross-check: blind grading and adversarial audit
Final verification and publication gate: Codex · Evidence date: 2026-08-01 · Corrections: none

Cite this verdict

Tai chi x fibromyalgia symptoms and function Evidence Grade C card
[Chamgap] Tai chi x fibromyalgia symptoms and function — Evidence Grade C·56. 3 cited sources checked. Source: https://chamgap.com/en/verdicts/joint-bone/tai-chi-fibromyalgia-symptoms-function/ · 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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