Kinematics of sprint cross-country skiing

• Autorzy: Zory R. , Barberis A. , Rouard A. , Schena F.
• Języki publikacji: EN

Abstrakty

EN

The purpose of our study was to characterise the diagonal stride locomotion during a new short spruit race in cross-country skiing. Thirty male cross-country skiers were sagittaly filmed on an uphill portion of the 1.2-km classic race of the world cup (2004) usmg a digital camera. The mam body joints, skis and poles were digitised frame by frame. Results indicated higher SV and SR for similar SL compared to longer distance races with a sunilar slope. Moreover, significant correlations were observed between SV and SR but not between SV and SL contrary to the other distance races. SL results showed that in spite of the high SR. skiers maintained an effective leg and pole thrusts. The high SR in KO sprint presented a mechanical advantage by minimising the decrease of velocity during the cycle. The importance of SR in the velocity production could be use fill for practitioners to optimise the training program for this type of race. It seemed notable that the skiers had to improve temporal factors while conserving a long SL.

Słowa kluczowe

EN

diagonal stride; KO sprint; kinematics; cross-country skiing

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Acta of Bioengineering and Biomechanics
• Rocznik: 2005
• Tom: Vol. 7, nr 2
• Strony: 88--96
• Opis fizyczny: Bibliogr. 26 poz., rys., tab.

Twórcy

autor

Zory R.

• Laboratoire de Modelisation des Activites Sportive. Universite de Savoie. 73376 LE BOURGET DU LAC, France

autor

Barberis A.

• Laboratoire de Modelisation des Activites Sportive. Universite de Savoie. 73376 LE BOURGET DU LAC, France

autor

Rouard A.

• Laboratoire de Modelisation des Activites Sportive. Universite de Savoie. 73376 LE BOURGET DU LAC, France

autor

Schena F.

• Laboratorio di Ricerca Ce.Bi.S.M., Centro inter-universitario di Bioingegneria e Scienze Motorie Università di Brescia, TRENTO e Verona, Italia

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