Abstract
To evaluate the effect of ankle-foot orthosis on lower limbs kinematic segmental covariation (KSC) among stroke patients. Ten chronic hemiparetic spastic stroke patients presenting with a lack of ankle dorsiflexion were assessed with instrumented gait analysis under three conditions: wearing a shoe, with a prefabricated ankle-foot orthosis (AFO), and with a dynamic AFO. Kinematic parameters were recorded and computed KSC was calculated according to Borghese's methodology. Contrary to the prefabricated AFO, the dynamic AFO improved KSC of the paretic side. We observed a high correlation between the external mechanical work and the affected side's KSC. In the unaffected side, KSC was globally unchanged. In stroke patients, wearing a dynamic AFO improves KSC of the paretic lower limb only.
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