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Ankle dorsi- and plantar-flexion torques measured by dynamometry in healthy subjects from 5 to 80 years.

Abstract : BACKGROUND: Ankle strength is often impaired in some of the most common neuromuscular disorders. Consequently, strength generated around this joint is important to assess, because it has a great impact on balance and gait. The objectives of this study were to establish normative data and predictive equations for both ankle dorsi- and plantar-flexion strength from a population of healthy subjects (children and adults), to assess the reliability of the measurements and to study the feasibility of using a novel dynamometer on a group of patients with a neuromuscular disorder. METHODS: Measurements of maximal isometric torque for dorsi- and plantar-flexion were performed on 345 healthy subjects from 5 to 80 years of age. The feasibility of the method was tested on nine patients diagnosed with type 2A limb girdle muscular dystrophy. RESULTS: The results documented normal strength values depending on gender and age on ankle dorsi- and plantar-flexion. The reliability of the technique was good with no evaluator effect and a small learning effect. The dynamometer was found suitable in the group of patients, even very weak. CONCLUSIONS: The device developed was both reliable and accurate in assessing both ankle dorsi-flexion and plantar-flexion torque measurements from weak patients and children to strong healthy adults. Norms and predictive equations are provided for these two muscle functions.
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Submitted on : Saturday, April 6, 2013 - 7:29:41 AM
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Amélie Moraux, Aurélie Canal, Gwenn Ollivier, Isabelle Ledoux, Valérie Doppler, et al.. Ankle dorsi- and plantar-flexion torques measured by dynamometry in healthy subjects from 5 to 80 years.. BMC Musculoskeletal Disorders, BioMed Central, 2013, 14 (1), pp.104. ⟨10.1186/1471-2474-14-104⟩. ⟨inserm-00808698⟩

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