Cervical auscultation using Doppler ultrasound for swallows of different consistencies by young and older healthy adults.

Key Points

• To evaluate the differences in swallowing duration across age groups and bolus consistencies using Doppler ultrasound.
• Utilized Doppler ultrasound for cervical auscultation signals during swallowing tasks.
• Compared swallowing duration between younger and older adults.
• Assessed frequency and intensity measures across different bolus consistencies.
• Older adults exhibited longer swallowing durations compared to younger adults.
• No significant differences were observed across bolus consistencies for swallowing duration.
• Frequency and intensity measures did not show sensitivity to age or bolus consistency effects.