Development and Comparative Evaluation of New Shapes of
Pillows |
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| Authors: | Jin-Gang Her Do-Heung Ko Ji-Hae Woo Young-Eun Choi |
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| Affiliation: | 1) Department of Physical Therapy, Hallym College, Republic of Korea;2) Department of Speech Pathology and Audiology, Hallym University, Republic of Korea;3) Department of Rehabilitation Therapy, Hallym University, Republic of Korea |
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| Abstract: | The purpose of this study was to determine pillow designs suitable for supine andside-lying positions. [Subjects] Twenty female and twenty male subjects with a mean age of22.7 years (SD = 1.3) participated in the study. [Methods] First, a three-dimensionalmotion analysis system was used to analyze the movements of the head and the shoulderjoints during changes from supine positions to side-lying positions. Second, the heightfrom the face to the shoulder and the height from the floor to the middle of the neck in aside-lying position were measured. Third, the weight distribution ratios of the head andthe trunk were compared using general pillows (polyester sponge), memory foam, andprototype pillows. [Results] During position changes from supine positions to side-lyingpositions, the head moved in a fan shape, and the shoulder joint moved an average of 4.4cm upward. The height from the face to the shoulder was 9 cm on average. The height fromthe floor to the middle of the neck was 11 cm on average. The weight distribution ratiosbetween the head and the trunk were compared among general pillows (polyester sponge),memory foam, and prototype pillows. The results showed significant differences in theside-lying position. [Conclusion] Pillows with uniform heights are not suitable for asupine or side-lying position. In the case of both positions, users should be allowed toselect pillows in shapes that can support the neck.Key words: Pillow, Sleep position, Motion analysis |
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