Article

Understanding the biomechanics of the foot is essential for many areas of
research and clinical practice such as orthotic interventions and footwear
development. Despite the widespread attention paid to the biomechanics of the
foot during gait, what largely remains unknown is how the foot moves inside the
shoe. This study investigated the reliability of the Adelaide In-Shoe Foot Model,
which was designed to quantify in-shoe foot kinematics and kinetics during
walking. Intra-rater reliability was assessed in 30 participants over five
walking trials whilst wearing shoes during two data collection sessions,
separated by one week. Sufficient reliability for use was interpreted as a
coefficient of multiple correlation and intra-class correlation coefficient of
>0.61. Inter-rater reliability was investigated separately in a second sample of
10 adults by two researchers with experience in applying markers for the purpose
of motion analysis. The results indicated good consistency in waveform estimation
for most kinematic and kinetic data, as well as good inter-and intra-rater
reliability. The exception is the peak medial ground reaction force, the minimum
abduction angle and the peak abduction/adduction external hindfoot joint moments
which resulted in less than acceptable repeatability. Based on our results, the
Adelaide in-shoe foot model can be used with confidence for 24 commonly measured
biomechanical variables during shod walking.
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Langue : ANGLAIS