The influence of bolus volume and viscosity on anterior lingual force during the oral stage of swallowing

Jeri L. Miller, Kenneth Lloyd Watkin

Research output: Contribution to journalArticlepeer-review

Abstract

The influence of bolus volume and viscosity on the distribution of anterior lingual force during the oral stage of swallowing was investigated using a new force transducer technology. The maximum force amplitudes from 5 normal adults were measured simultaneously at the mid-anterior, right, and left lateral tongue margins during 10 volitional swallows of 5-, 10-, and 20-ml volumes of water, applesauce, and pudding. Results indicated significant increases in peak force amplitude as viscosity increased. Volume did not significantly influence maximum lingual force amplitudes. Individual subjects demonstrated consistent patterns of asymmetrical force distribution across the lingual margins tested. The results suggest that bolus-specific properties influence the mechanics of oral stage lingual swallowing. This finding has important clinical implications in the assessment and treatment of dysphagic individuals.

Original languageEnglish (US)
Pages (from-to)117-124
Number of pages8
JournalDysphagia
Volume11
Issue number2
DOIs
StatePublished - Apr 19 1996

Keywords

  • Bolus transport
  • Bolus viscosity
  • Bolus volume
  • Deglutition
  • Deglutition disorders
  • Dysphagia
  • Tongue pressure

ASJC Scopus subject areas

  • Otorhinolaryngology
  • Gastroenterology
  • Speech and Hearing

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