Journalartikel

Is There an Optimal Pole Length for Double Poling in Cross Country Skiing?


AutorenlisteOnasch, Franziska; Killick, Anthony; Herzog, Walter G

Jahr der Veröffentlichung2017

Seiten197-202

ZeitschriftJournal of Applied Biomechanics

Bandnummer33

Heftnummer3

ISSN1065-8483

eISSN1543-2688

DOI Linkhttps://doi.org/10.1123/jab.2016-0071

VerlagHuman Kinetics


Abstract
The aim of this study was to determine the effects of pole length on energy cost and kinematics in cross country double poling. Seven sub-elite male athletes were tested using pole sets of different lengths (ranging between 77% and 98% of participants' body height). Tests were conducted on a treadmill, set to a 2% incline and an approximate racing speed. Poling forces, contact times, and oxygen uptake were measured throughout the testing. Pole length was positively correlated with ground contact time (r =.57, p <.001) and negatively correlated with poling frequency (r = -.48, p =.003). Pole length was also positively correlated with pole recovery time and propulsive impulse produced per poling cycle (r =.36, p =.031; r =.35, p =.042, respectively). Oxygen uptake and pole length were negatively correlated (r = -.51, p =.004). This acute study shows that increasing pole length for double poling in sub-elite cross country skiers under the given conditions seems to change the poling mechanics in distinct ways, resulting in a more efficient poling action by decreasing an athlete's metabolic cost.



Zitierstile

Harvard-ZitierstilOnasch, F., Killick, A. and Herzog, W. (2017) Is There an Optimal Pole Length for Double Poling in Cross Country Skiing?, Journal of Applied Biomechanics, 33(3), pp. 197-202. https://doi.org/10.1123/jab.2016-0071

APA-ZitierstilOnasch, F., Killick, A., & Herzog, W. (2017). Is There an Optimal Pole Length for Double Poling in Cross Country Skiing?. Journal of Applied Biomechanics. 33(3), 197-202. https://doi.org/10.1123/jab.2016-0071



Schlagwörter


BODY-COMPOSITIONelite skiersmetabolic costoptimal performanceoxygen uptakepoling kinematicsSKIERS


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