CHAMGAP
APPROVEDReviewed and approved by the Chamgap Editorial Team (2026-07-24). The draft was written by AI, the existence of all 2 cited sources was verified at the original page, and the verdict passed blind grading and adversarial audit. Methodology v0.6.
Verdict No. 1655 · Search date 2026-07-24 · Methodology v0.6

Pelvic floor muscle exercise plus manometric biofeedback,
does it really help with Improved erectile function in men with erectile dysfunction?

30-Second Summary
C
Evidence Grade C · 47 · Safety unknown
IIEF erectile function improved meaningfully, but evidence remains limited to one small trial analyzing 50 completers
What the
research shows
Pelvic floor muscle exercise plus manometric biofeedback is rated C because it may improve erectile function in men with erectile dysfunction. The trial randomized 55 men, but the three-month primary analysis was a completer analysis of 50, with 25 per group, rather than intention to treat. The successful primary IIEF erectile-function endpoint showed an adjusted between-group difference of 7.0 points (95% CI 2.4 to 11.6), exceeding the study's cited six-point clinical-improvement threshold. A single small trial and crossover of controls after three months left no long-term randomized comparison, supporting C with 47 points.
What the
ads claim
Promotion can turn this into a claim that Kegel exercises cure erectile dysfunction, outperform medication, or work for everyone. The trial evaluated a three-month combined intervention with physiotherapist instruction, pressure feedback, and lifestyle advice, and did not directly compare medication.
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Useful facts when choosing a product

  • The pivotal trial used five weekly 30-minute physiotherapist sessions with manometric feedback to verify correct contraction, followed by daily home exercise for six months.
  • The intervention was a combined program of correct muscle selection, contraction and relaxation, and sustained practice rather than simply increasing repetitions of unsupervised Kegel exercises.
  • Men with pelvic pain, painful urination or ejaculation, or suspected hypertonic pelvic floor should seek male pelvic-floor assessment before strengthening.
  • Erectile dysfunction can signal vascular disease, diabetes, medicine effects, hormonal disease, neurologic disease, or psychological factors, so new or persistent symptoms require etiologic assessment.
Gap Measurement · Verdict 1655 · C 47
What advertising claims
What independent, higher-quality research supports
△ GAP
01

What the research actually shows

The single-center United Kingdom trial randomized 55 men with erectile dysfunction for at least six months to pelvic floor exercise, manometric biofeedback, and lifestyle advice (28) or lifestyle advice alone (27). Only 25 per group had three-month data, making the primary analysis a completer rather than intention-to-treat analysis. The prespecified IIEF erectile-function primary endpoint succeeded with an adjusted 7.0-point difference, P=0.004, above the cited six-point clinical threshold. Controls then crossed to intervention, so six-month results lacked a concurrent randomized control. A 2019 review included ten trials, five concerning erectile dysfunction, but could not pool them because methods and protocols were heterogeneous and quality was low to moderate.

02

Why this is classified as C (47)

The IIEF erectile-function primary endpoint succeeded by an adjusted 7.0 points in 50 completers and exceeded a six-point clinical-improvement threshold. The analysis was not intention to treat, and one small short-term trial without long-term randomized control or independent confirmation supports C with 47 points.

Counterpoint. This may be a low-risk adjunct for men who prefer a nonpharmacologic option or have suspected weakness, but it does not replace standard evaluation or establish superiority over PDE5 inhibitors.

Rejudgment record. Cross-check applied — Distinguished 55 randomized participants from the actual three-month analysis of 50 completers, accepted the adjusted 7.0-point IIEF primary-endpoint difference and clinical threshold, and applied the small single non-ITT trial ceiling. Only 50 completers were analyzed after 55 were randomized, so the analysis was not intention to treat, and no independent confirmatory trial exists.

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
Improved IIEF erectile function at three monthsCThe primary endpoint succeeded by an adjusted 7.0 points in 50 completers, but this was one small non-ITT trial.
Sustained erectile-function improvement for six months or longerCHuman six-month follow-up exists, but controls crossed to intervention after three months, leaving no concurrent randomized comparison and no established longer durability.
Superior erectile-function improvement versus PDE5 inhibitors?A repeat search found no human randomized study directly testing this comparative efficacy endpoint. Narrative comparison with a separate drug trial is not a head-to-head comparison.

Cross-check — Codex and Claude

This verdict was drafted by Codex through literature review and source-existence checks, cross-checked through blind grading and adversarial audit, and settled by reapplying the methodology boundary rules. Cases with split grades were resolved through rejudgment.
03

Evidence Table

StudyDesignSampleFundingEndpointResultWeight
Dorey G et al. 2004Single-center randomized controlled trial with control crossover after three months25Inadequately reported; hospital and university academic researchPrimary: three-month IIEF erectile-function domainPrimary endpoint met: baseline-adjusted between-group difference 7.0 points (95% CI 2.4 to 11.6), P=0.004.Key direct randomized evidence, but single, small, and completer-based
Myers C, Smith M. 2019Systematic review of pelvic floor muscle training5Academic research; no manufacturer concentration reportedImprovement or normalization of erectile function and premature-ejaculation outcomesGenerally positive direction, but low-to-moderate study quality and intervention heterogeneity prevented pooling.Evidence breadth and quality-limitation assessment
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Receipt — 2 References

All 2 cited sources were verified for existence at the original page (as of 2026-07-24).

Dorey G, Speakman M, Feneley R, Swinkels A, Dunn C, Ewings P. Randomised controlled trial of pelvic floor muscle exercises and manometric biofeedback for erectile dysfunction. Br J Gen Pract. 2004;54(508):819-825. PMID: 15527607. PMCID: PMC1324914. DOI: none.
checked
Myers C, Smith M. Pelvic floor muscle training improves erectile dysfunction and premature ejaculation: a systematic review. Physiotherapy. 2019;105(2):235-243. PMID: 30979506. DOI: 10.1016/j.physio.2019.01.002.
checked
Draft and rewrite: Codex (AI) · Verification: Codex blind grading and adversarial audit · Final adjudication: Claude
Reviewed and approved: Chamgap Editorial Team · Approval date: 2026-07-24 · Corrections: none

Cite this verdict

Pelvic floor muscle exercise plus manometric biofeedback x improved erectile function Evidence Grade C card
[Chamgap] Pelvic floor muscle exercise plus manometric biofeedback x improved erectile function — Evidence Grade C·47. 2 cited sources checked. Source: https://chamgap.com/en/verdicts/mens/pelvic-floor-muscle-exercise-manometric-biofeedback-improve-erectile-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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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.