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Direct linkFranca, Maria Claudia; Simpson, Kenneth O. – Communication Disorders Quarterly, 2013
The objective of this "pilot" investigation was to study the effects of the interaction of caffeine and water intake on voice as evidenced by acoustic and aerodynamic measures, to determine whether ingestion of 200 mg of caffeine and various levels of water intake have an impact on voice. The participants were 48 females ranging in age…
Descriptors: Adults, Water, Statistical Significance, Stimulants
