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Foot posture and function have only minor effects on knee function during barefoot walking in healthy individuals

Buldt, AK, Levinger, P, Murley, GS, Menz, HB, Nester, CJ and Landorf, KB 2015, 'Foot posture and function have only minor effects on knee function during barefoot walking in healthy individuals' , Clinical Biomechanics, 30 (5) , pp. 431-437.

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Background: Foot posture has been postulated as a risk factor for overuse injuries of the knee, however the link between foot posture and knee joint function is unclear. The aims of this study were to: (i) compare knee adduction moment and knee joint rotations between normal, planus and cavus foot posture groups, and (ii) to determine the relationship between rearfoot and midfoot joint rotations and knee adduction moment magnitude. Methods: Rotation of the knee, rearfoot and midfoot was evaluated in 97 healthy adults that were classified as normal (n = 37), cavus (n =30 ) or planus (n = 30) for the Foot Posture Index, Arch Index and normalised navicular height. One way analyses of variance were used to compare tri-planar knee joint rotation, knee adduction moment peak variables and knee adduction angular impulse between foot posture groups. Pearson's correlation coefficient was used to investigate the association between rearfoot and midfoot joint rotation during initial contact phase and the magnitude of 1st knee adduction moment peak. Findings: The planus group displayed significantly greater external rotation angle at heel contact compared to both normal and cavus groups. The planus groups also displayed greater extension at heel contact and sagittal plane flexion range of motion during propulsion and early swing compared to the cavus group. Otherwise, differences between groups were characterised by small effect sizes. There was no association between rearfoot or midfoot joint rotations and knee adduction moment. Interpretation: These findings suggest that in healthy individuals, foot posture and foot joint rotations do not substantially influence knee joint rotations and knee adduction moment while walking at a comfortable pace.

Item Type: Article
Themes: Health and Wellbeing
Schools: Schools > School of Health Sciences > Centre for Health Sciences Research
Journal or Publication Title: Clinical Biomechanics
Publisher: Elsevier
Refereed: Yes
ISSN: 0268-0033
Related URLs:
Funders: Non funded research
Depositing User: Professor Christopher Nester
Date Deposited: 07 Jul 2015 11:48
Last Modified: 07 Jul 2015 11:48

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