Balance perturbations as a measurement tool for trunk impairment in cross-country sit skiing

• Valeria Rosso ^[1] ; Laura Gastaldi ^[2] ; Walter Rapp ^[3] ; Stefan Lindinger ^[4] ; Yves Vanlandewijck ^[5] ; Sami Äyrämö ^[1] ; Vesa Linnamo ^[1]
  1. [1] University of Jyväskylä

     University of Jyväskylä

     Jyväskylä, Finlandia

     
  2. [2] Polytechnic University of Turin

     Polytechnic University of Turin

     Torino, Italia

     
  3. [3] University of Freiburg

     University of Freiburg

     Stadtkreis Freiburg im Breisgau, Alemania

     
  4. [4] University of Gothenburg

     University of Gothenburg

     Suecia

     
  5. [5] KU Leuven

     KU Leuven

     Arrondissement Leuven, Bélgica

     

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• Localización: Adapted physical activity quaterly, ISSN 0736-5829, Vol. 36, Nº. 1, 2019, págs. 61-76
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Dialnet Métricas: 1 Cita
• Resumen

  • In cross-country sit-skiing, the trunk plays a crucial role in propulsion generation and balance maintenance. Trunk stability is evaluated by automatic responses to unpredictable perturbations; however, electromyography is challenging. The aim of this study was to identify a measure to group sit-skiers according to their ability to control the trunk. Seated in their competitive sit-ski, 10 male and 5 female Paralympic sit-skiers received 6 forward and 6 backward unpredictable perturbations in random order. k-means clustered trunk position at rest, delay to invert the trunk motion, and trunk range of motion significantly into 2 groups. In conclusion, unpredictable perturbations might quantify trunk impairment and may become an important tool in the development of an evidence-based classification system for cross-country sit-skiers.