Does the Position of the Hinge in Cross-country Ski Bindings Affect Muscle Activation in Skating?

Conor M. Bolger, Øyvind Sandbakk, Gertjan Ettema, Peter Federolf

2014

Abstract

The objective of this study is to examine effect of changed hinge positioning in cross-country ski bindings on efficiency, kinematics and muscle activation patterns. Differences in muscle activation were investigated using a principle component analysis (PCA) due to the higher sensitivity of this method. Participants performed three tests utilizing varying hinge positions: front (toe attachment 0 cm), middle (4 cm behind toe), back (8 cm behind toe). The skiers performed 4 minutes at moderate intensity in G3 skating technique with all hinge positions. All tests were performed at 5% incline and 3.89 m/s. Conclusion: The greatest differences between skating and classical, and between genders were found on flat and uphill terrain, but were not associated with variations in heart rate. In all athletes, the hinge position affected (F (2,87) > 5.71, p < 0.005) the scores ξ3,i of the third eigenvector v3 in which represented 7.0% of the entire variability of the dataset (EV3 = 0.0699). The current pilot-study indicates differences in gross efficiency and kinematics, and revealed significant differences in muscle coordinative patterns with varying hinge positions.

References

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Paper Citation


in Harvard Style

M. Bolger C., Sandbakk Ø., Ettema G. and Federolf P. (2014). Does the Position of the Hinge in Cross-country Ski Bindings Affect Muscle Activation in Skating? . In - icSPORTS, ISBN , pages 0-0


in Bibtex Style

@conference{icsports14,
author={Conor M. Bolger and Øyvind Sandbakk and Gertjan Ettema and Peter Federolf},
title={Does the Position of the Hinge in Cross-country Ski Bindings Affect Muscle Activation in Skating?},
booktitle={ - icSPORTS,},
year={2014},
pages={},
publisher={SciTePress},
organization={INSTICC},
doi={},
isbn={},
}


in EndNote Style

TY - CONF
JO - - icSPORTS,
TI - Does the Position of the Hinge in Cross-country Ski Bindings Affect Muscle Activation in Skating?
SN -
AU - M. Bolger C.
AU - Sandbakk Ø.
AU - Ettema G.
AU - Federolf P.
PY - 2014
SP - 0
EP - 0
DO -