日本人アルペンス真言撃享攣姦左下肢骨格に基づく

摘要

A ski boot is important for assisting progress in ski turning technique as an interface between a skier and a ski. Especially in alpine ski races, suitability of design of the boots for racers becomes more important to achieve accurate and quick lean of the leg in ski turns. This study aimed at building a new design method of a ski boot that can improve the results of alpine ski races. In this paper, design method for the optimum height of a ski boot based on features of the leg frame of Japanese alpine ski racers was analytically and experimentally examined. The interrelation between the results of laboratory experiments on leaning balance and gliding time of giant slalom tests was examined, and ensured a new method of an individual design of an upper shell of a ski boot for each alpine ski racer. As a result, it was demonstrated that the optimum design of the upper shell could be determined by using principal component analysis in the laboratory test. Finally, the effectiveness of the new design of the ski boot was verified in giant slalom test.%スキーブーツはスキーヤーとスキーの間のインターフェイスとして重要であり，特に，アルペンスキー競技においては，ターン中の下肢の正確かつすばやい内傾を達成することが重要となる．本研究は，アルペンスキー選手の成績向上のため，新しいスキーブーツの設計手法の構築を目的とする．本報では，日本人アルペンスキーレーサーの下肢骨格に基づいたスキーブーツの最適高さの設計手法を実験と数値解析の両面から検討した．室内での傾倒バランス実験と屋外での雪上滑降実験の結果の相関関係を明らかにし，主成分分析による個々のアルペンスキーレーサーに対する最適値の新しい決定方法を提案する．最終的に，新たに設計されたスキーブーツの効果をジャイアントスラーロームテストで検証した．