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Related Experiment Videos

Effect of posture on swallowing.

Ahmad H Alghadir1, Hamayun Zafar1, Einas S Al-Eisa1

  • 1Rehabilitation Research Chair, College of Applied Medical Sciences, King Saud University, Riyadh, KSA.

African Health Sciences
|October 14, 2017
PubMed
Summary

Swallowing difficulty is least perceived in an upright posture. Changing head and body positions significantly impacts swallowing ease in healthy individuals, suggesting potential therapeutic applications for dysphagia.

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Area of Science:

  • Physiology
  • Biomechanics
  • Clinical Nutrition

Background:

  • Swallowing is a complex physiological process.
  • Dysphagia, or difficulty swallowing, can result from structural, physiological, or neurological impairments.
  • Limited research exists on the impact of head and neck postures on swallowing difficulty.

Purpose of the Study:

  • To investigate the influence of various body postures on the subjective experience of swallowing difficulty in healthy individuals.

Main Methods:

  • Participants swallowed 25 ml of water in different postures: upright sitting, head/neck flexion, head/neck extension, and supine lying.
  • Subjects rated their perceived swallowing difficulty on a scale of 0 (easiest) to 10 (most difficult).

Main Results:

Keywords:
Swallowingdysphagiaposture

Related Experiment Videos

  • The upright sitting position was associated with the least perceived swallowing difficulty.
  • Statistically significant differences in perceived difficulty were observed across the tested postures.

Conclusions:

  • Altering body posture may aid in dysphagia rehabilitation by optimizing bolus transit.
  • Postural adjustments can enhance swallowing speed and safety, potentially preventing aspiration by improving airway closure.