Fischer Christian, Overney Leila S, Fauve Mathieu, Blanke Olaf, Rhyner Hansueli, Herzog Michael H, Bourban Pierre-Etienne, Månson Jan-Anders E
Laboratoire de Technologie des Composites et Polymères (LTC), Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.
J Sports Sci. 2007 Dec;25(14):1567-76. doi: 10.1080/02640410701244991.
Flexural and torsional rigidity are important properties of skis. However, the flexural and torsional rigidity that lead to optimal performance remain to be established. In the present study, four pairs of slalom skis that differed in flexural and torsional rigidity were tested by advanced and expert skiers. Using a 10-item questionnaire, different aspects of the skis' performance were rated on a 9-point scale. For each pair of skis, physical measurements were compared with the ratings of the two groups of skiers. Correlations (Spearman) were then determined between (i) different mechanical properties of the skis (static and dynamic), (ii) subjective assessments of the participants, and (iii) properties of the skis and the participants' assessments. The latter showed that expert skiers rate the aspects of the skis more accurately than advanced skiers. Most importantly, expert skiers are particularly sensitive to torsion of the skis. These results suggest that such highly rated elements should be addressed in future ski designs.
抗弯刚度和抗扭刚度是滑雪板的重要属性。然而，能带来最佳性能的抗弯刚度和抗扭刚度仍有待确定。在本研究中，四对在抗弯刚度和抗扭刚度方面存在差异的回转滑雪板由高水平和专业滑雪者进行测试。使用一份包含10个条目的问卷，滑雪板性能的不同方面按9分制进行评分。对于每对滑雪板，将物理测量结果与两组滑雪者的评分进行比较。然后确定（i）滑雪板不同的机械性能（静态和动态）、（ii）参与者的主观评估以及（iii）滑雪板的性能与参与者评估之间的相关性（斯皮尔曼相关性）。后者表明，专业滑雪者比高水平滑雪者对滑雪板各方面的评分更准确。最重要的是，专业滑雪者对滑雪板的扭转特别敏感。这些结果表明，在未来的滑雪板设计中应考虑这些评分较高的因素。
