engleski

DOES THE SEQUENTIAL TEACHING OF ELEMENTS OF ALPINE SKI SCHOOL FOLLOW THE INCREASE OF PRESSURE BENEATH THE SKIER'S FOOT?

In everyday practice, it is quite common for a ski instructor to ask ski school participants to become aware of pressure under certain parts of the feet during skiing in order to improve their performance. At the same time literature is lacking concerning ground reaction forces and pressures achieved during recreational level skiing. The aim of the present study was to determine the differences between measured forces and their distribution under skiers’ feet during performance of different elements of ski technique. Analysis of kinetic parameters was conducted on four elements of alpine ski school (snowplough, basic turn, parallel turn, short turn). Variable sample included 16 variables. In each element of ski technique analysed were 12 turns (6 in left and 6 in right side). Kinetic parameters were measured by insoles designed for pressure detection (Novel, Pedar). Results of our study suggest that in-boot pressure over outer leg rises as the turns become more complex (from basic to parallel turn and short turn). When pressure is compared between inner and outer leg, significantly lower pressure level was on an inner leg (in ratio 1:4) in all elements of technique except during short turn. From a ski technique standpoint, it was clear that the pressure applied with the feet was higher towards more complex elements, and this finding is in accordance with advancements of plan and program of an alpine ski school. Therefore, it is necessary for ski instructors to teach skiing beginners where, when and how to apply pressure in each phase of learning process.

alpine skiing ; kinetic analysis ; pressure insoles

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