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Original Research

The Validity of Plantarflexor Strength Measures Obtained Through Hand-held Dynamometry Measurements of Force

Authors: Marmon AE, Pozzi F, Alnahdi A, Zeni JA

Hand-held dynamometers are commonly used to assess plantarflexor strength during rehabilitation. The purpose of this study was to determine the concurrent validity of measuring plantarflexion force using a hand-held dynamometer (HHD) as compared to an electromechanical dynamometer as the gold standard. The hypothesis was that plantarflexor force measurments obtained using a hand-held dynamometer would not show absolute agreement with a criterion standard. The authors found that plantarflexor strength measurements acquired using HHD are different from those acquired using an EMD and are likely influenced by the strength of the examiner.

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