Gait analysis was performed on five normal children walking barefoot with bilateral double-upright ankle-foot orthoses (AFOs) and with plastic AFOs. When orthoses were worn, walking speed and cadence were reduced and quadriceps EMG timing was prolonged. Changes in lower extremity motions and torques were observed. The metal-and-leather AFOs impaired normal walking, more than the plastic orthoses. This study provides baseline information for evaluation of new orthotic designs and materials for children. In clinical practice, this information may be useful in selection of orthotic materials for some patients.
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