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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Effects of Lateral and Medial Wedged Insoles on Knee and Ankle Internal Joint Moments During Walking in Healthy Men

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Author(s):
Fukuchi, Claudiane A. ; Lewinson, Ryan T. ; Worobets, Jay T. ; Stefanyshyn, Darren J.
Total Authors: 4
Document type: Journal article
Source: JOURNAL OF THE AMERICAN PODIATRIC MEDICAL ASSOCIATION; v. 106, n. 6, p. 411-418, NOV 2016.
Web of Science Citations: 0
Abstract

Background: Wedged insoles have been used to treat knee pathologies and to prevent injuries. Although they have received much attention for the study of knee injury, the effects of wedges on ankle joint biomechanics are not well understood. This study sought to evaluate the immediate effects of lateral and medial wedges on knee and ankle internal joint loading and center of pressure (CoP) in men during walking. Methods: Twenty-one healthy men walked at 1.4 m/sec in five footwear conditions: neutral, 6 degrees (LW6) and 9 degrees (LW9) lateral wedges, and 6 degrees (MW6) and 9 degrees (MW9) medial wedges. Peak internal knee abduction moments and angular impulses, internal ankle inversion moments and angular impulses, and mediolateral CoP were analyzed. Analysis of variance with post hoc analysis and Pearson correlations were performed to detect differences between conditions. Results: No differences in internal knee joint loading were found between neutral and any of the wedge conditions. However, as the wedge angle increased from medial to lateral, the internal ankle inversion moment (LW6: P=.020; LW9: P<.001; MW6: P=.046; MW9: P<.001) and angular impulse (LW9: P=.012) increased, and the CoP shifted laterally (LW9: P<.001) and medially (MW9: P<.001) compared with the neutral condition. Conclusions: Neither lateral nor medial wedges were effective in altering internal knee joint loading during walking. However, the greater internal ankle inversion moment and angular impulse observed with lateral wedges could lead to a higher risk of ankle injury. Thus, caution should be taken when lateral wedges need to be prescribed. (AU)

FAPESP's process: 14/13502-7 - Effect of the velocity of locomotion in gait movement pattern of young adults and elderly individuals: experimental study, computational simulation and creation of public database
Grantee:Claudiane Arakaki Fukuchi
Support Opportunities: Scholarships in Brazil - Doctorate (Direct)