Postural Sway in Normal and Mentally Retarded Persons

  • Hideyuki Okuzumi
  • Kouichi Haishi
  • Mitsuru Kokubun


The purpose of this study was: (1) to examine the magnitude of postural sway in persons with mental retardation (PMR) according to clinical types of retardation in comparison with non-handicapped persons, and (2) to investigate the relation between magnitude of sway (MS) and body balance exercises (beam walking and one-foot balance) according to clinical types. The subjects were 134 non-handicapped persons and 45 PMR. The results were as follows: (1) The average MS of autistic persons and other PMR was about the same as that of non-handicapped children aged 4 or 5 years. Among other PMR, however, the MS distribution was relatively large. On the other hand, MS in persons with Down syndrome was generally small, and was similar to that of nonhandicapped children aged 6 years; this small MS appeared to be characteristic of the syndrome. (2) With regard to MS and body balance exercise performance, all subjects in the small magnitude group belonged to the high-performance group except for the persons with Down syndrome.


Mental Retardation Root Mean Square Down Syndrome Force Platform Clinical Type 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    Matsuzaki Y, Nakata H, Saito Y (1982) Postural control abilities of mentally retarded children (in Japanese with English abstract). Bull Defectol 6(1):79–87Google Scholar
  2. 2.
    Wade MG (1990) Impact of optical flow on postural control in normal and mentally handicapped persons. In: Vermeer A (ed) Motor development, adapted physical activity and mental retardation. Med Sport Sci 30:21–29Google Scholar
  3. 3.
    Hirasawa Y (1979) An observation on standing ability of Japanese males and females (in Japanese with English abstract). J Anthrop Soc Nippon 87(2):81–92CrossRefGoogle Scholar
  4. 4.
    Kokubun M, Koike T (to be published) Problem in balance performance of persons with mental retardation. In: Vermeer A (ed) Aspects of gross and sensory motor development in mental retardation. Med Sport SciGoogle Scholar
  5. 5.
    Aggashyan RV, Gurfinkel VS, Mamasakhlisov GV, Einer AM (1973) Changes in spectral and correlation characteristics of human stabilograms at muscle afferentation disturbance. Agressologie 14(D):5–9PubMedGoogle Scholar

Copyright information

© Springer-Verlag Tokyo 1994

Authors and Affiliations

  • Hideyuki Okuzumi
  • Kouichi Haishi
  • Mitsuru Kokubun

There are no affiliations available

Personalised recommendations