著者
Pooriput Waongenngarm Bala S. Rajaratnam Prawit Janwantanakul
出版者
理学療法科学学会
雑誌
Journal of Physical Therapy Science (ISSN:09155287)
巻号頁・発行日
vol.27, no.7, pp.2183-2187, 2015 (Released:2015-07-22)
参考文献数
38
被引用文献数
6 13

[Purpose] This study aimed to investigate the perceived discomfort and trunk muscle activity in three different 1-hour sitting postures. [Subjects] A repeated-measures design study was conducted on 10 healthy subjects. [Methods] Each subject sat for an hour in three sitting postures (i.e., upright, slumped, and forward leaning sitting postures). Subjects rated perceived body discomfort using Borg’s CR-10 scale at the beginning and after 1 hour sitting. The electromyographic activity of the trunk muscle activity was recorded during the 1-hour period of sitting. [Results] The forward leaning sitting posture led to higher Borg scores in the low back than those in the upright (p = 0.002) and slumped sitting postures (p < 0.001). The forward leaning posture was significantly associated with increased iliocostalis lumborum pars thoracis (ICL) and superficial lumbar multifidus (MF) muscle activity compared with the upright and slumped sitting postures. The upright sitting posture was significantly associated with increased internal oblique (IO)/transversus abdominis (TrA) and ICL muscle activity compared with the slumped sitting posture. [Conclusion] The sitting posture with the highest low back discomfort after prolonged sitting was the forward leaning posture. Sitting in an upright posture is recommended because it increases IO/TrA muscle activation and induces only relatively moderate ICL and MF muscle activation.

言及状況

外部データベース (DOI)

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Forward leaning (back straight, bending forward > 10 degrees) causes more back pain than slumping or sitting uprigh… https://t.co/gLQ18LuWUb
Forward leaning (back straight, bending forward > 10 degrees) causes more back pain than slumping or sitting uprigh… https://t.co/CSkQmlQCQR
Forward leaning (back straight, bending forward > 10 degrees) causes more back pain than slumping or sitting uprigh… https://t.co/LTjkpGxcD7
Forward leaning (back straight, bending forward > 10 degrees) causes more back pain than slumping or sitting upright https://t.co/vJM0D9wr62
Forward leaning (back straight, bending forward > 10 degrees) causes more back pain than slumping or sitting upright https://t.co/vJM0D9wr62
Forward leaning (back straight, bending forward > 10 degrees) causes more back pain than slumping or sitting upright https://t.co/vJM0D9wr62
Forward leaning (back straight, bending forward > 10 degrees) causes more back pain than slumping or sitting upright https://t.co/vJM0D9wr62
Forward leaning (back straight, bending forward > 10 degrees) causes more back pain than slumping or sitting upright https://t.co/vJM0D9wr62
Forward leaning (back straight, bending forward > 10 degrees) causes more back pain than slumping or sitting upright https://t.co/vJM0D9wr62
Full text: Perceived body discomfort and trunk muscle activity in three prolonged sitting postures https://t.co/boScn5gutN

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