Rotational and peak torque stiffness of rugby shoes |
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| Affiliation: | 1. University Hospital Aintree, Longmoor Lane, Liverpool L7 9AL, UK;2. CTS Piede e Caviglia, RCCS Galeazzi, 4 Zip 20100 Milan, Italy;3. Laboratory of Biological Structure, Mechanics Department of Chemistry, Materials and Chemical Engineering “Giulio Natta”, Politecnico di Milano and IRCCS Galeazzi, Italy;1. Design Manufacturing and Control Laboratory, EA 4495, ENSAM CER Metz, 4 rue Augustin Fresnel, 57078 Metz Cedex 3, France;2. National Engineering School of Metz, 1 route d’Ars Laquenexy, 57078 Metz Cedex 3, France;1. Department of Psychiatry and Behavioral Health, Vanderbilt University School of Medicine, 1500 21st Avenue South, Nashville, TN 37212, USA;2. Department of Psychiatry and Behavioral Health, University of South Carolina School of Medicine – Greenville, Prisma Health – Upstate, 10 Patewood Drive, Suite 130, Greenville, SC 29615, USA;1. Faculty of Health Sciences, Universidad Rey Juan Carlos, Spain;2. School of Nursing, Physiotherapy and Podiatry, Universidad Complutense de Madrid, Spain;3. Faculty of Sport Sciences, Universidad Europea de Madrid, Villaviciosa de Odón, Madrid, Spain;4. Research, Health and Podiatry Unit, Department of Health Sciences, Faculty of Nursing and Podiatry, Universidade da Coruña, Spain;5. University Center of Plasencia, Universidad de Extremadura, Spain;6. Nursing and Physical Therapy Department, Institute of Biomedicine (IBIOMED), Faculty of Health Sciences, Universidad de León, Ponferrada, León, Spain |
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| Abstract: | ObjectiveSports people always strive to avoid injury. Sports shoe designs in many sports have been shown to affect traction and injury rates. The aim of this study is to demonstrate the differing stiffness and torque in rugby boots that are designed for the same effect.MethodsFive different types of rugby shoes commonly worn by scrum forwards were laboratory tested for rotational stiffness and peak torque on a natural playing surface generating force patterns that would be consistent with a rugby scrum.ResultsThe overall internal rotation peak torque was 57.75 ± 6.26 N m while that of external rotation was 56.55 ± 4.36 N m. The Peak internal and external rotational stiffness were 0.696 ± 0.1 and 0.708 ± 0.06 N m/deg respectively. Our results, when compared to rotational stiffness and peak torques of football shoes published in the literature, show that shoes worn by rugby players exert higher rotational and peak torque stiffness compared to football shoes when tested on the same natural surfaces. There was significant difference between the tested rugby shoes brands.ConclusionIn our opinion, to maximize potential performance and lower the potential of non-contact injury, care should be taken in choosing boots with stiffness appropriate to the players main playing role. |
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| Keywords: | Rugby Shoes Torque Rotational Stiffness |
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