Abstract ▼ AI-Helper

The pelvic is an important part of the gait control because the lower extremity is connected to the acetabulum.
Many factors associated with gait abnormality were found until the present. The pelvic asymmetry was confirmed to have the greatest connection with chronic abnormal gait among others....

The pelvic is an important part of the gait control because the lower extremity is connected to the acetabulum.
Many factors associated with gait abnormality were found until the present. The pelvic asymmetry was confirmed to have the greatest connection with chronic abnormal gait among others. It causes the leg length discrepancy by changing the height of the femoral head. This deformation adds to pressure increase on one-side.
Foot orthotics are commonly used for the relief of symptoms on the pelvic asymmetry patients. Since customized foot orthotics made with consideration for individual variations of patients, it effects a positive impact on the pelvic asymmetry treatment by inducing effectively biomechanical change of the lower extremity. The purpose of this study was to manufacture customized foot orthotics for gait balance improvement of pelvic asymmetry patients. For this manufacturing, we evaluated the effect of the customized foot orthotics on foot pressure and lower extremity muscle activation of pelvic asymmetry patients. The study was performed for 10 patients with high left pelvic and 10 normal group. All subjects walked under three condition: walking with barefoot, walking with customized foot orthotics, walking with ready-made foot orthotics. The foot pressure distribution and the lower extremity muscle activation were measured at same time. As the results, the customized foot orthotics effectively reduced the plantar pressure at forefoot and rearfoot compared to barefoot and ready-made foot orthotics. In addition, it tended to reduce excessive tension by the pelvic inclined to the right, on the gluteus medius, the biceps femoris, the medial gastrocnemius and the rectus femoris. Accordingly, we could found the customized foot orthotics relieved the abnormal load of one-side foot and the tension of lower extremity muscles by the pelvic asymmetry. The result of this study can help for manufacturing of the customized foot orthotics or footwear.

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