The Effects of Different Head Angles on Suprahyoid Muscle Activation (머리 각도가 목뿔위근육의 근활성에 미치는 영향)

Woo, Hee-soon (우희순); Kiyeon Chang (장기연); Chon Seung Chul (천승철)

The Effects of Different Head Angles on Suprahyoid Muscle Activation

Korean Journal of Occupational Therapy
Abbr : Korean J of Occup Ther
2009, 17(4), pp.71-79
Publisher : Korean Society Of Occupational Therapy
Research Area : Medicine and Pharmacy > Working Therapeutics

Woo, Hee-soon ¹, Kiyeon Chang ¹, Chon Seung Chul ¹

¹우송대학교

Accredited

ABSTRACT

Objective : This research was carried out for the purpose of creating clinical applications for improving the swallowing function by comparing suprahyoid muscle activation at different head angles. Methods : Volunteers were collected among students attending OO university in Daejeon, Gwangyeok-si, and 39 subjects 394 males and 15 females) participated in the experiment. The neutral position (a head flexion of 0°) was set with a base angle of the Frankfort horizontal plane parallel to the Earth's sus 394; after confiering a 15°inferior and superior head angle through an X-ray scty ie39h anguas position (head flexion 0°, head flexion 15°and head extension 15°) was tested for 3 dry swallowing and wet swallowing attempts (a 10 second break after 1 swallow). Results : In both dry and wet swallowing, a 15°flexion of the head angle activates the suprahyoid muscles more than in the neutral position, while a 15°stretching of the head angle did not have a statistically significant effect on swallowing. Conclusion : Swallowing induced at a flexed head angle position can more greatly activate the suprahyoid muscles and mobilize the hyoid bone; therefore, this is suggested as a safe way of eating.

KEYWORDS

Head angle, Head flexion, Muscle activation, Suprahyoid muscles

Citation status

* References for papers published after 2023 are currently being built.

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