Uffe Laessoe1, Anne Weinreich Svendsen2, Mads Norre Christensen2, Jacob Rosenkrans Rasmussen2, Alexander Scharf Gaml2. 1. Physiotherapy Department, University College of Northern Denmark, UCN, Selma Lagerloffsvej 2, DK-9220, Aalborg, Denmark; Department of Research and Development, University College of Northern Denmark, UCN, Selma Lagerloffsvej 2, DK-9220, Aalborg, Denmark. Electronic address: ufl@ucn.dk. 2. Physiotherapy Department, University College of Northern Denmark, UCN, Selma Lagerloffsvej 2, DK-9220, Aalborg, Denmark.
Abstract
OBJECTIVES: Ankle sprains often lead to a history of recurrent injuries and functional joint instability. This study evaluated a new method for assessing functional impairment in patients with chronic ankle instability. DESIGN: Case-control study for construct validation purpose. SETTING: The participants were tested during one-leg standing for 20 s on an instrumented wobble board and on a balance platform. PARTICIPANTS: Twenty-five young people with previous ankle sprain and an instability score >11 in the "Identification of Functional Ankle Instability questionnaire" and an age-matched control group of 25 healthy individuals. MAIN OUTCOME MEASURES: Wobble board variation of tilt angle measured by two accelerometers placed horizontally in the board. RESULTS: The variation in angular tilt of the wobble board in the medio-lateral direction (standard deviation of tilt angle) was higher in the group with perceived ankle instability than in the control group: 1.5 (0.7) versus 1.1 (0.3). ICC for intra-tester reliability: 0.87 and correlation with COP area measures from the stable balance platform: 0.64. CONCLUSIONS: People with functional ankle instability display poorer postural stability in the medio-lateral direction when challenged on an unstable surface. The instrumented wobble board may serve as a relevant tool in the clinical evaluation of functional ankle stability.
OBJECTIVES: Ankle sprains often lead to a history of recurrent injuries and functional joint instability. This study evaluated a new method for assessing functional impairment in patients with chronic ankle instability. DESIGN: Case-control study for construct validation purpose. SETTING: The participants were tested during one-leg standing for 20 s on an instrumented wobble board and on a balance platform. PARTICIPANTS: Twenty-five young people with previous ankle sprain and an instability score >11 in the "Identification of Functional Ankle Instability questionnaire" and an age-matched control group of 25 healthy individuals. MAIN OUTCOME MEASURES: Wobble board variation of tilt angle measured by two accelerometers placed horizontally in the board. RESULTS: The variation in angular tilt of the wobble board in the medio-lateral direction (standard deviation of tilt angle) was higher in the group with perceived ankle instability than in the control group: 1.5 (0.7) versus 1.1 (0.3). ICC for intra-tester reliability: 0.87 and correlation with COP area measures from the stable balance platform: 0.64. CONCLUSIONS:People with functional ankle instability display poorer postural stability in the medio-lateral direction when challenged on an unstable surface. The instrumented wobble board may serve as a relevant tool in the clinical evaluation of functional ankle stability.
Authors: Mariana Zadrapova; Eva Mrázková; Miroslav Janura; Michal Strycek; Martin Cerny Journal: Int J Environ Res Public Health Date: 2022-07-25 Impact factor: 4.614
Authors: Massimiliano Mosca; Silvio Caravelli; Simone Massimi; Mario Fuiano; Giuseppe Catanese; Giuseppe Barone; Laura Bragonzoni; Maria Grazia Benedetti Journal: Medicine (Baltimore) Date: 2020-04 Impact factor: 1.817