Influence of lingual muscular strength on articulatory proficiency

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Abstract
The relationship between lingual muscular strength (LMS) and articulatory proficiency in 45 normal and 45 lisping speakers was investigated using a Lingual Force Scale designed specifically for this investigation. Lispers exhibited significantly reduced LMS compared to their matched controls. No significant differences in LMS between males and females with lisped speech or between normal speaking males and females existed at 5 age levels. Significant positive correlations were noted between age and LMS in both groups of subjects. Lisping apparently should not always be viewed as a purely functional disorder of the speech musculature. In cases where lisping is due to muscular weakness, muscular exercises may improve speech.