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http://dx.doi.org/10.5103/KJSB.2014.24.1.019

Comparisons of Foot Pressure Patterns between Experienced Skiers and Intermediate Skiers during Alpine Skiing  

Kim, Joo-Nyeon (Department of Physical Education, Graduate School of Korea National Sport University)
Yoo, Si-Hyun (Department of Physical Education, Graduate School of Korea National Sport University)
Ha, Sung-He (Department of Physical Education, Graduate School of Korea National Sport University)
Kim, Jin-Hae (Department of Physical Education, College of Sport Science of Korea National Sport University)
Ryu, Ji-Seon (Department of Health and Exercise Science, College of Lifetime Sport of Korea National Sport University)
Park, Sang-Kyoon (Department of Physical Education, College of Sport Science of Korea National Sport University)
Yoon, Suk-Hoon (Department of Community Sport, College of Lifetime Sport of Korea National Sport University)
Publication Information
Korean Journal of Applied Biomechanics / v.24, no.1, 2014 , pp. 19-26 More about this Journal
Abstract
This study investigated foot pressure patterns between experienced skiers and intermediate skiers during alpine skiing. Five experienced skiers and five intermediate skiers participated in this study. Foot pressure measurement system was used to measure vertical ground reaction force (vGRF) and contact area under the six plantar regions. Each participant was asked to perform basic parallel turns and carved turns on a $18^{\circ}$ groomed slope. Each right turn was divided into the initiation phase, the steering phase 1 and 2. For the initiation phase of the basic parallel turns, significantly greater contact area was found on the LRF and RRF of the intermediate skiers (p<.05) and significantly greater vGRF was found on the LRF of the intermediate skiers (p<.05). Also significantly greater vGRF and contact area were found on the LRF and RRF of the intermediate skiers at the steering phase 1 (p<.05) and on the LRF of the intermediate skiers at the steering phase 2 (p<.05). For the carved turns, significantly greater vGRF and contact area were found on the LRF and RRF of the intermediate skiers at all three phase (p<.05). On the other hand, significantly greater vGRF was found on the RFF of the experienced skiers at the steering phase 1 (p<.05). Also significantly greater vGRF and contact area were found on the RMF of the experienced skiers at the steering phase 2 (p<.05). In order to increase performance, we suggest that the intermediate skiers should be unweighted at the initiation phase and shift the body weight to the forefoot of the outer foot at the steering phase 1. Also, the outer ski should be loaded more than the both skis at the steering phase 1 and 2.
Keywords
Alpine Ski; Inter Ski; Foot Pressure; Basic Parallel Turn; Carving Turn;
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