Abstract
In cross-country sit-skiing all athletes compete in a sitting position, but some of them have the ability to control their trunk more than others. The trunk plays an essential role in two performance determinants: propulsion generation and balance maintenance. The aim of the study is to design a new testing device assessing athletes’ responses to these propulsion determinants. The new device was composed of a seat surrounded by a sensorized aluminum frame. To assess propulsion generation, two force sensors were mounted in the anterior and posterior side of the frame, while two force sensors were embedded in two ropes elongated from the top of the frame. To measure trunk control, the device was mounted on an electrically-driven sledge, which can be moved in anterior and posterior direction giving unpredictable balance perturbations to the athlete. In the paper a pilot test is presented. One athlete with low trunk control level was tested. The main results were: (1) no drawbacks related to discomfort or pain, (2) lower level of generated force without back support compared to the condition with back support, and (3) higher trunk range of motion and trunk angular velocity in response to unpredictable balance perturbations when the acceleration of the perturbations increased. These preliminary results suggest that the new device is suitable for testing sitting athletes. Future tests with a higher number of athletes with different levels of disability can give valuable new information, which can be used for evidence-based classification.
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References
International Paralympic Committee (2015) IPC Nordic skiing rule and regulations. http://www.paralympic.org/sites/default/files/document/151119115946728_2015_11_19_IPCNS_Rules%252Band%252BRegulations.pdf
Tweedy S, Howe P (2011) Introduction to the Paralympic Movement. In: Vanlandewijck Y, Thompson WR (eds) Handbook of sports medicine and science, the Paralympic athlete. Wiley-Blackwell, Chichester, pp 3–32
Gastaldi L, Mauro S, Pastorelli S (2016) Analysis of the pushing phase in Paralympic cross-country sit-skiers – class LW10. J Adv Res 7:971–978
Van de Vliet P (2013) Paralympic research in nordic sports. In: Hakkarainen A, Linnamo V, Lindinger S (eds) Sci. Nord. Ski. II. University of Jyväskylä, Jyväskylä, pp 23–31
Pernot HFM, Lannem AM, Geers RPJ et al (2011) Validity of the test-table-test for Nordic skiing for classification of Paralympic sit-ski sports participants. Spinal Cord Off J Int Med Soc Paraplegia 49:935–941
Tweedy S, Vanlandewijck Y (2011) International Paralympic committee position stand–background and scientific principles of classification in Paralympic sport. Br J Sports Med 45:259–269
Agostini V, Sbrollini A, Cavallini C et al (2016) The role of central vision in posture: postural sway adaptations in Stargardt patients. Gait Posture 43:233–238
Vanlandewijck Y, Thompson W (2011) The Paralympic athlete – handbook of sports medicine and science. Wiley-Blackwell, Sussex
Murphy AJ, Wilson GJ, Pryor JF, Newton RU (1995) Isometric assessment of muscular function: the effect of joint angle. J Appl Biomech 11:205–215
Willson JD, Dougherty CP, Ireland ML, Davis IM (2005) Core stability and its relationship to lower injury. J Am Acad Orthop Surg 13:316–325
Vanlandewijck YC, Verellen J, Beckman E et al (2011) Trunk strength effect on track wheelchair start: implications for classification. Med Sci Sports Exerc 43:2344–2351
Rosso V, Linnamo V, Rapp W et al (2016) Trunk kinematics during cross country sit-skiing ergometry: skiing strategies associated to neuromusculoskeletal impairment. In: 2016 IEEE international symposium on medical measurements and applications
Gastaldi L, Pastorelli S, Frassinelli S (2012) A biomechanical approach to Paralympic cross-country sit-ski racing. Clin J Sport Med 22:58–64
Rosso V, Gastaldi L, Rapp W et al (2017) Biomechanics of simulated versus natural cross-country sit skiing. J Electromyogr Kinesiol 32:15–21. doi:10.1016/j.jelekin.2016.11.002
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Rosso, V. et al. (2018). A New Testing Device for the Role of the Trunk in Force Production and in Balance Control in Disabled Sitting Athletes. In: Ferraresi, C., Quaglia, G. (eds) Advances in Service and Industrial Robotics. RAAD 2017. Mechanisms and Machine Science, vol 49. Springer, Cham. https://doi.org/10.1007/978-3-319-61276-8_105
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DOI: https://doi.org/10.1007/978-3-319-61276-8_105
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