Document Detail

Effects of excessive body weight on postural control.
MedLine Citation:
PMID:  19386313     Owner:  NLM     Status:  MEDLINE    
Research that evaluated both static and dynamic stability was performed, to clarify the impact of excessive body weight on postural control. The spontaneous center of foot pressure (CP) motion during quiet stance and a range of forward voluntary CP displacements were studied in 100 obese, and 33 lean women. Characteristics of postural sway were acquired while the subjects were standing quiet on a force plate with eyes open (EO) and with eyes closed (EC). Their anterior range of CP voluntary displacements was assessed upon a range of maximal whole body leanings which were directed forward. A substantial reduction of postural sway was observed in all patients which had increased body weight. Main postural sway parameters i.e., the total path length as well as its directional components were negatively correlated with the body mass and body mass index (BMI). The range of a whole body voluntary forward leaning, did not exhibit any significant change in patients with an obesity grade of I and II. Such a deficit was, however, found in subjects with a body mass index above 40. In conclusion, the increased body weight imposed new biomechanical constraints, that resulted in functional adaptation of the control of the erect posture. This functional adaptation was characterized by a reduced postural sway associated with a substantial reduction of the dynamic stability range in subjects with BMI>40.
Janusz W Błaszczyk; Joanna Cieślinska-Swider; Michal Plewa; Barbara Zahorska-Markiewicz; Andrzej Markiewicz
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Publication Detail:
Type:  Journal Article     Date:  2009-04-21
Journal Detail:
Title:  Journal of biomechanics     Volume:  42     ISSN:  1873-2380     ISO Abbreviation:  J Biomech     Publication Date:  2009 Jun 
Date Detail:
Created Date:  2009-06-15     Completed Date:  2009-09-21     Revised Date:  2010-01-29    
Medline Journal Info:
Nlm Unique ID:  0157375     Medline TA:  J Biomech     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1295-300     Citation Subset:  IM    
Jerzy Kukuczka Academy of Physical Education, Faculty of Physiotherapy, Katowice, Poland.
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MeSH Terms
Body Mass Index*
Middle Aged
Obesity / physiopathology*
Posture / physiology*
Vision, Ocular / physiology
Young Adult
Comment In:
J Biomech. 2010 Jan 19;43(2):383-4; author reply 385-6   [PMID:  19880125 ]

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