Higher stiffness compensation leads to increased passive and active ankle dorsiflexion
ID
Bron
Verkorte titel
Aandoening
Stroke
Ondersteuning
Onderzoeksproduct en/of interventie
Uitkomstmaten
Primaire uitkomstmaten
Active ankle RoM at single joint and activity level
Achtergrond van het onderzoek
A large population of stroke patients suffer from increased passive ankle joint stiffness and limited active range of motion (RoM) impairing their gait. In order to improve gait, current ankle-foot-orthoses (AFOs) counteract this so called equinus foot to neutral position by providing continuous stretch towards dorsiflexion. These AFOs further increase joint stiffness at the cost of active RoM. Therefore, we elaborated on a new AFO concept to compensate (instead of increase) the excessive passive ankle joint stiffness. We have now developed a first wearable prototype AFO based on this concept, to be tested in our clinical population of stroke patients. We will test the feasibility, functionality and comfort of the AFO using a within-subject design (n=30) at single joint level (i.e. ankle movement only) and at activity level (gait) with the new AFO at different levels of stiffness compensation. Overall comfort will be assessed by patient reported outcome measures (PROMs). Results of the study will be used to further optimize the AFO design and future study protocols.
Doel van het onderzoek
Higher stiffness compensation leads to increased passive and active ankle dorsiflexion
Onderzoeksopzet
One measurement
Onderzoeksproduct en/of interventie
new AFO
Publiek
Wetenschappelijk
Belangrijkste voorwaarden om deel te mogen nemen (Inclusiecriteria)
Chronic stroke phase (defined as first stroke > 6 months); Spastic paresis of the Triceps Surae muscles of the left or right leg; Equinus or equinovarus foot deformity of the affected side defined as increased passive ankle joint stiffness and limited active RoM of the affected side compared to the non-affected side; Prescribed walking aid (orthotic shoes or AFO)
Belangrijkste redenen om niet deel te kunnen nemen (Exclusiecriteria)
Age < 18 years; Drop foot (tibialis paresis); Surgical treatment on the affected leg for spastic paresis; Inability to walk (with or without walking aid); Inability to understand measurement instructions
Opzet
Deelname
Voornemen beschikbaar stellen Individuele Patiënten Data (IPD)
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