The effects of obesity and standing time on postural sway during prolonged quiet standing

D. Singh, W. Park, M. S. Levy, Eui Seung Jung

Research output: Contribution to journalArticle

47 Citations (Scopus)

Abstract

This study examined the effects of obesity level, standing time and their interaction on postural sway during a prolonged quiet upright standing task. Ten extremely obese (BMI > 40 kg/m2) and 10 non-obese (18.5 kg/m2 < BMI < 24.9 kg/m2) participants performed quiet upright standing on a force plate for over 18 min. Eleven postural sway measures were computed for each 1-min time interval based on the centre-of-pressure data from the force plate. ANOVA and regression analyses showed that for all the 11 postural sway measures, the extremely obese group had higher postural sway than the non-obese at the beginning of the prolonged standing task and postural sway increased significantly faster for the extremely obese group than the non-obese over time. The results suggest that obesity may impair postural control and may be a risk factor of balance loss and falls, especially during prolonged physical work activities. The research findings are relevant to identifying and reducing risks of balance loss and falls in various workplace settings for a wide variety of workers.

Original languageEnglish
Pages (from-to)977-986
Number of pages10
JournalErgonomics
Volume52
Issue number8
DOIs
Publication statusPublished - 2009 Sep 3

Fingerprint

Obesity
Analysis of variance (ANOVA)
Workplace
Analysis of Variance
workplace
Group
Regression Analysis
worker
Pressure
regression
interaction
Research
time

Keywords

  • Balance loss
  • Fall
  • Functional reach
  • Obesity
  • Postural sway
  • Prolonged standing

ASJC Scopus subject areas

  • Human Factors and Ergonomics
  • Physical Therapy, Sports Therapy and Rehabilitation

Cite this

The effects of obesity and standing time on postural sway during prolonged quiet standing. / Singh, D.; Park, W.; Levy, M. S.; Jung, Eui Seung.

In: Ergonomics, Vol. 52, No. 8, 03.09.2009, p. 977-986.

Research output: Contribution to journalArticle

Singh, D. ; Park, W. ; Levy, M. S. ; Jung, Eui Seung. / The effects of obesity and standing time on postural sway during prolonged quiet standing. In: Ergonomics. 2009 ; Vol. 52, No. 8. pp. 977-986.
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