Document Detail

Rocker bottom soles alter the postural response to backward translation during stance.
MedLine Citation:
PMID:  19329317     Owner:  NLM     Status:  MEDLINE    
Shoes with rocker bottom soles are utilized by persons with diabetic peripheral neuropathy to reduce plantar pressures during gait. This population also has a high risk for falls. This study analyzed the effects of shoes with rocker bottom soles on the postural response during perturbed stance. Participants were 20 healthy subjects (16 women, 4 men) ages 22-25 years. Canvas shoes were modified by the addition of crepe sole material to represent two forms of rocker bottom shoes and a control shoe. Subjects stood on a dynamic force plate programmed to move backward at a velocity that produced an automatic postural response without stepping. Force plate data were collected for five trials per shoe type. Sway variables for center of pressure (COP) and center of mass (COM) included: mean sway amplitude, sway variance, time to peak, anterior and posterior peak velocities, functional stability margin, and peak duration time. Compared to control, both the experimental shoes had significantly larger COP and COM values for mean sway amplitude, sway variance and peak duration. The functional stability margins were significantly smaller for the experimental shoes while their anterior and posterior peak velocities were slower and time to peaks were significantly longer. In young healthy adults, shoes with rocker bottom soles had a destabilizing effect to perturbed stance, thereby increasing the potential for imbalance. These results raise concerns that footwear with rocker bottom sole modifications to accommodate an insensate foot may increase the risk of falls.
Bruce C Albright; Whitney M Woodhull-Smith
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Publication Detail:
Type:  Comparative Study; Journal Article     Date:  2009-03-28
Journal Detail:
Title:  Gait & posture     Volume:  30     ISSN:  1879-2219     ISO Abbreviation:  Gait Posture     Publication Date:  2009 Jul 
Date Detail:
Created Date:  2009-05-18     Completed Date:  2009-08-13     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9416830     Medline TA:  Gait Posture     Country:  England    
Other Details:
Languages:  eng     Pagination:  45-9     Citation Subset:  IM    
Department of Physical Therapy, College of Allied Health Sciences, Health Sciences Building, East Carolina University, Greenville, NC 27858, United States.
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MeSH Terms
Accidental Falls / prevention & control
Cohort Studies
Diabetic Foot / prevention & control*,  rehabilitation
Diabetic Neuropathies / diagnosis,  rehabilitation
Foot / physiopathology*
Gait / physiology*
Multivariate Analysis
Postural Balance / physiology*
Proprioception / physiology
Reference Values
Sensitivity and Specificity
Young Adult

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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