Influence of Spinal Curvature on Shear Force Applied to Buttocks while Sitting Comfortably on a Chair

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  • KOBARA Kenichi
    Department of Rehabilitation, Faculty of Health Science and Technology, Kawasaki University of Medical Welfare
  • WATANABE Susumu
    Department of Rehabilitation, Faculty of Health Science and Technology, Kawasaki University of Medical Welfare
  • FUJITA Daisuke
    Department of Rehabilitation, Faculty of Health Science and Technology, Kawasaki University of Medical Welfare
  • EGUCHI Atsuko
    Department of Physical Therapy, Fukuoka Rehabilitation College
  • SHINKODA Koichi
    Department of Physical Therapy and Occupational Therapy Sciences, Hiroshima University Graduate School of Health Sciences

Bibliographic Information

Other Title
  • 脊柱後彎が椅子上安楽座位における臀部ずれ力に及ぼす影響
  • セキチュウ コウワン ガ イス ジョウ アンラクザイ ニ オケル デンブズレ リョク ニ オヨボス エイキョウ

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Abstract

[Purpose] The purpose of this study was to investigate the influence of spinal curvature on the shear force applied to the buttocks while sitting comfortably on a chair. [Subjects] The subjects were 10 elderly people with kyphosis in a facility providing health care services for the elderly. For comparison, 11 healthy young male subjects were recruited. [Method] To compare the shear force in elderly individuals with kyphosis with that in healthy young individuals, the shear force was measured using a force plate while subjects sat comfortably on a chair. [Results] The shear force recorded in the elderly subjects (8.4 ± 1.4 [%BW]) was significantly lower than that in the young subjects (9.5 ± 0.7 [%BW]). [Conclusions] The results suggest the possibility that the shear force applied to the buttocks in elderly individuals with kyphosis is decreased compared with that in healthy young individuals without kyphosis.<br>

Journal

  • Rigakuryoho Kagaku

    Rigakuryoho Kagaku 26 (3), 441-445, 2011

    The Society of Physical Therapy Science

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