JOINT COORDINATION ADAPTATIONS TO AN IMPLEMENTED RAMP ANGLE IN RECREATIONAL ALPINE SKIERS

Authors

Stephanie R. Moore, Northern Michigan UniversityFollow
Josef Kröll, Department of Sport Science and Kinesiology, University of SalzburgFollow
Sarah B. Clarke, Northern Michigan UniversityFollow
Gerda StrutzenbergerFollow
Randall L. Jensen, Northern Michigan UniversityFollow

Category

Technology/equipment

Document Type

Paper

Abstract

Most ski boot-binding complexes have a positive ramp angle. This angle is not regulated or reported in the alpine ski industry, but may influence skier balance and pressure control. Therefore joint coordination during a dynamic ski squat task with increasing boot ramp angle (0°, 1°, 2°) in alpine skiers (n=19) was investigated. Average joint coupling angles were significantly different between barefoot and ski conditions, as well as between the three ramp angles during the upward phase of a squat. The percentage of squat with uncoordinated knee-ankle joint movements tended to increase in ski conditions versus barefoot conditions, and coordinated hip-knee movement was reduced with alpine boot-binding-ski complexes. These differences in joint coordination and average coupling angles may impact skier balance and pressure control across the ski while skiing.

Recommended Citation

Moore, Stephanie R.; Kröll, Josef; Clarke, Sarah B.; Strutzenberger, Gerda; and Jensen, Randall L. (2018) "JOINT COORDINATION ADAPTATIONS TO AN IMPLEMENTED RAMP ANGLE IN RECREATIONAL ALPINE SKIERS," ISBS Proceedings Archive: Vol. 36: Iss. 1, Article 35.
Available at: https://commons.nmu.edu/isbs/vol36/iss1/35