Percentage of consonants correct

1. Oral muscle strengthening exercises improve percentage of consonants correct in humans (from 97.87 at baseline to 98.99 post-intervention, p = 0.003).

   “the intervention group showed significantly greater improvements than the control group post-intervention in PCC (from 97.87 at baseline to 98.99 post-intervention, p = 0.003)”

   Human trial6 weeks

   Effectiveness of Immersive Oral Muscle Training on Pronunciation in Older Adults: A Randomised Trial

   Australasian journal on ageing·28 Nov 2025

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