Mechanical effects of medial and lateral wedged orthoses during running

Sinclair, Jonathan Kenneth orcid iconORCID: 0000-0002-2231-3732 (2018) Mechanical effects of medial and lateral wedged orthoses during running. Physical Therapy in Sport, 32 . pp. 48-53. ISSN 1466-853X

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Official URL: https://doi.org/10.1016/j.ptsp.2018.04.020

Abstract

OBJECTIVE: The aim of the current investigation was to examine the effects of orthoses with 5° medial and lateral wedges on knee joint kinetics during the stance phase of running.
DESIGN: Repeated measures
SETTING: Laboratory
PARTICIPANTS: Twelve recreational runners
OUTCOME MEASUREMENTS: Twelve male participants ran over a force platform at 4.0m/s in three different conditions (medial orthotic, lateral orthotic and no-orthotic). Lower limb kinematics were collected using an 8-camera motion capture system allowing knee kinetics to be quantified using a musculoskeletal modelling approach. Differences in knee joint kinetics between orthotic conditions were examined using one-way repeated measures ANOVA.
RESULTS: The results showed that peak patellofemoral force was significantly increased in the medial (31.81 N/kg) and lateral (31.29 N/kg) wedged orthoses, in comparison to the no20 orthotic (29.61 N/kg) condition. In addition, the peak knee adduction moment was significantly increased in the medial (1.10 Nm/kg) orthoses, in comparison to the lateral (0.87
Nm/kg) condition.
CONCLUSIONS: The results from this study indicate that lateral orthoses may be effective 23 in attenuating runners risk from medial tibiofemoral compartment OA, but that wedged 24 orthoses may enhance their risk from patellofemoral pain.


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