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Experimental Methods to Study Human Postural Control
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Does Body Mass Index Affect Postural Control in Adults?

Taylor M Kruse1, Andrew L Shim2, Ian J Bonder1

  • 1Department of Kinesiology & Exercise Science, College of Saint Mary, Omaha, NE, USA.

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Higher body mass index (BMI) in adults is linked to poorer postural control, especially with eyes open on a normal surface. This suggests obesity may negatively impact balance in everyday situations.

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Area of Science:

  • Biomechanics
  • Human Physiology
  • Public Health

Background:

  • Obesity presents significant health challenges, impacting various physiological functions.
  • Maintaining balance and postural control are crucial for daily activities and fall prevention.
  • Understanding the link between body mass index (BMI) and balance is vital given the global obesity epidemic.

Purpose of the Study:

  • To investigate the relationship between body mass index (BMI) and postural control in adults.
  • To determine if higher BMI correlates with impaired balance metrics.
  • To assess balance under different sensory and surface conditions relative to BMI.

Main Methods:

  • Analysis of cross-sectional data from 225 healthy adults.
  • Collection of four center of pressure (CoP) scores using computerized posturography.
  • Statistical analysis using Pearson's correlation coefficients to assess BMI and CoP relationships.

Main Results:

  • A significant, weak negative correlation was found between BMI and Normal Surface Eyes Open (NSEO) conditions (r = -0.180, p = 0.007).
  • Insignificant negative relationships were observed between BMI and Normal Surface Eyes Closed (NSEC) and Perturbed Surface Eyes Open (PSEO) conditions.
  • No significant relationship was found between BMI and Perturbed Surface Eyes Closed (PSEC) conditions.

Conclusions:

  • Elevated BMI may be associated with reduced postural control, particularly under normal surface, eyes-open conditions.
  • These findings highlight a potential link between obesity and impaired balance.
  • Further research is warranted to explore the implications for fall risk in obese populations.