ArticleJournal of applied research in intellectual disabilities : JARID2026
Characterisation of Pelvic Floor Muscle Activation in Adults With Intellectual Disability Using Surface Electromyography: A Comparative Cross-Sectional Study.
Article in Journal of applied research in intellectual disabilities : JARID, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
introductionAdults with intellectual disability (ID) have high rates of urinary incontinence, yet objective neuromuscular data are limited. We compared pelvic floor muscle (PFM) activation using surface electromyography (sEMG) in adults with ID versus matched controls.
methodsIn this cross-sectional study, 104 participants were recruited to an ID group (n = 52) and a matched control group (n = 52). Perianal sEMG recorded five maximal voluntary contractions following a standardised protocol. Intensity, variability, contraction onset and relaxation times were analysed using t or Mann-Whitney tests, MANOVA and multiple regression.
resultsCompared with controls, the ID group showed lower mean activity (5.3 ± 6.0 vs. 8.8 ± 7.2 μV; p < 0.001; d = 0.52), lower peaks, longer onset and greater variability; relaxation parameters did not differ. MANOVA indicated a significant global group effect (Wilks' λ = 0.801, p = 0.003). Regression identified ID as the sole independent predictor of reduced activation.
conclusionsAdults with ID exhibit weaker, less stable and delayed PFM activation, supporting tailored physiotherapy.
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