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:: Volume 22, Issue 2 (6-2020) ::
J Gorgan Univ Med Sci 2020, 22(2): 1-8 Back to browse issues page
Effect of using graded knee brace at two angles of 60 and 30 degrees on the ground reaction forces components in individuals with genu valgum during landing
Aidin Valizadehorang * 1, Farshad Ghorbanlou2 , Amir Ali Jafarnezhadgero3
1- Assistant Professor, Sport Physiology, Faculty of Educational Sciences and Psychology, University of Mohaghegh Ardabili, Ardabil, Iran , jteymour@gmail.com
2- Masters Student, Sport Biomechanic, Faculty of Educational Sciences and Psychology, University of Mohaghegh Ardabili, Ardabil, Iran
3- Assistant Professor, Sport Biomechanic, Faculty of Educational Sciences and Psychology, University of Mohaghegh Ardabili, Ardabil, Iran
Abstract:   (6158 Views)
Background and Objective: One of the most common malalignments of the knee joint is valgus. This study was done to determine the effect of using graded knee brace at two angles of 60 and 30 degrees on the ground reaction force components in males with genu valgus during landing.
Methods: This clinical trial study was done on twenty males with genu valgus with age range of 21.70±2.12 years. The graded knee brace was used in two flexion angles of 60 and 30 degrees. Landing from a platform with 40 cm height on a force plate was done during three conditions including without brace, with a brace at flexion angles of 30 and 60 degrees.
Results: A significant reduction was observed in the vertical force during contact phase while landing with brace at a 60-degree angle compared with landing without brace by 15.21% (P<0.05). Also, the peak of medio-lateral force during the heel contact phase while landing with knee brace at 30 degree was significantly greater than that landing with knee brace at 60 degree by 27.18 % (P<0.05).
Conclusion: By reducing the knee flexion angle, the forces of the lower extremities increase and this issue could possibly increase the risk of injury in the knee joint. Therefore, the use of this type of brace is recommended for individuals with genu valgum at a 60 degrees limiting angle.
Keywords: Genu valgum [MeSH], Knee joint [MeSH], Brace [MeSH]
Article ID: Vol22-16
Full-Text [PDF 259 kb]   (11607 Downloads)    
Type of Study: Original Articles | Subject: Rehabilitation
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Valizadehorang A, Ghorbanlou F, Jafarnezhadgero A A. Effect of using graded knee brace at two angles of 60 and 30 degrees on the ground reaction forces components in individuals with genu valgum during landing. J Gorgan Univ Med Sci 2020; 22 (2) :1-8
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Volume 22, Issue 2 (6-2020) Back to browse issues page
مجله دانشگاه علوم پزشکی گرگان Journal of Gorgan University of Medical Sciences
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