- Meeting abstract
- Open Access
Distal foot segment joint coupling patterns during walking gait
© Cobb et al; licensee BioMed Central Ltd. 2014
- Published: 8 April 2014
- Transverse Plane
- Frontal Plane
- Stance Phase
- Camera Motion
- Repeat Measure ANOVAs
Several surface based multi-segment foot models have been developed to investigate distal foot function during gait [1, 2]. However, the majority of the models have not defined medial and lateral forefoot or midfoot segments. In addition very little, is currently known regarding the coupling of the distal foot segments [3, 4]. The purpose of the current study, therefore, was to utilize a six foot segment model that includes both medial and lateral forefoot and midfoot segments to quantify the coupling between the distal foot segments during walking gait.
Ten participants (5 m, 5 f; mean age 22.7 ± 3.3 y) participated in the study. A 10 camera Motion Analysis system was used to capture three-dimensional positions of marker clusters located on the leg and six foot segments of interest (calcaneus, navicular, 1st and 2nd metatarsals, hallux, 4th and 5th metatarsals, cuboid). Following completion of 10 successful walking trials, joint coupling between adjacent segments of interest were investigated using vector coding. Repeated measures ANOVAs with one within-subject variable (stance subphase) were performed for each joint couple of interest to investigate joint coupling between stance subphases. Dependent t-tests were performed to investigate significant omnibus F ratios (α = 0.05).
Stance Subphase Coupling Direction (°)
Distal joint complex
Proximal joint complex
First MTP Sagittal
These results are clinically relevant due to the fact that a number of previous studies investigating joint coupling have only calculated a single coupling angle between the segments of interest. The single coupling angle has then been assumed to represent the coupling relationship throughout the stance phase. The results of the current study, however, suggest that this assumption may not be valid for all the coupling relationships between the distal foot segments during walking gait.
This study was supported by grants from the UW-Milwaukee College of Health Sciences and the Wisconsin Athletic Trainers’ Association.
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