Article

Foot orthoses are often used to correct altered gait patterns.
The purpose of
this study was to investigate how foot orthoses can modify the magnitude of three
dimensional moments of ankle, knee, and hip joints during a stride of gait in
children with flexible flat feet. Bilateral gait data were collected from
fourteen male children (age 10.2+/-1.4 years) suffering from flat feet syndrome.
In order to obtain the kinematics data, a Vicon system with six cameras (100Hz)
was used and two Kistler force plates (1000Hz) to record the kinetics data under
each leg. Arc support foot orthoses were used as an intervention. Paired-sample
T-test was used for within-group comparisons (alpha=0.05). The results of data
analysis showed that foot orthoses can decrease the ankle evertor moment, knee
and hip abductor moments and hip flexor moment in dominant lower limb. In
non-dominant lower limb, using the orthoses can decrease evertor and internal
rotator moments at the ankle, flexor and internal rotator moments at the knee and
extensor moment at the hip, while it can increase dorsiflexor moment at the
ankle. The findings imply that effects of orthoses on three dimensional moments
differ in dominant and non-dominant lower limbs. Furthermore, results
demonstrated that dominant and non-dominant lower limbs would also show different
responses to the same intervention.
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Langue : ANGLAIS