Mechanisms underlying center of pressure displacements in obese subjects during quiet stance
Open Access
- 22 April 2011
- journal article
- Published by Springer Science and Business Media LLC in Journal of NeuroEngineering and Rehabilitation
- Vol. 8 (1), 20
- https://doi.org/10.1186/1743-0003-8-20
Abstract
Objective: the aim of this study was to assess whether reduced balance capacity in obese subjects is secondary to altered sensory information.Design: cross sectional study.Subjects: 44 obese (BMI = 40.6 ± 4.6 kg/m2, age = 34.2 ± 10.8 years, body weight: 114,0 ± 16,0 Kg, body height 167,5 ± 9,8 cm) and 20 healthy controls (10 females, 10 males, BMI: 21.6 ± 2.2 kg/m2, age: 30.5 ± 5.5 years, body weight: 62,9 ± 9,3 Kg, body height 170,1 ± 5,8 cm) were enrolled.Measurements: center of pressure (CoP) displacements were evaluated during quiet stance on a force platform with eyes open (EO) and closed (EC). The Romberg quotient (EC/EO) was computed and compared between groups.Results: we found statistically significant differences between obese and controls in CoP displacements (p < 0.01) and no statistically significant differences in Romberg quotients (p > 0.08).Conclusion: the increased CoP displacements in obese subjects do not need an hypothesis about altered sensory information. The integration of different sensory inputs appears similar in controls and obese. In the latter, the increased mass, ankle torque and muscle activity may probably account for the higher CoP displacements.Keywords
This publication has 40 references indexed in Scilit:
- Posture Control in Vestibular‐Loss PatientsAnnals of the New York Academy of Sciences, 2009
- Strength characterization of knee flexor and extensor muscles in Prader-Willi and obese patientsBMC Musculoskeletal Disorders, 2009
- The relationship between postural stability and virtual environment adaptationNeuroscience Letters, 2008
- The influence of obesity on falls and quality of lifeDynamic Medicine, 2008
- Relative contribution of the pressure variations under the feet and body weight distribution over both legs in the control of upright stanceJournal of Biomechanics, 2007
- Equilibrium during static and dynamic tasks in blind subjects: no evidence of cross-modal plasticityBrain, 2007
- Clinical Impact of Obesity on Stability Following Revision Total Hip ArthroplastyClinical Orthopaedics & Related Research, 2006
- Reducing weight increases postural stability in obese and morbid obese menInternational Journal of Obesity, 2006
- Stature estimation based on hand length and foot lengthClinical Anatomy, 2005
- Closed-loop, estimator-based model of human posture following reduced gravity exposureJournal of Guidance, Control, and Dynamics, 1996