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最終更新日：2024/03/28
横澤 俊治
ヨコザワ トシハル
(Toshiharu Yokozawa)
論文
- タイトル
- スピードスケート男子1,500m 競技における世界一流スケーターのカーブ滑走技術
- タイトル（英）
- Skating technique during the curve of the world's leading male speed skaters in a 1,500-m race
- 参照URL
- https://researchmap.jp/yokozawatoshi/published_papers/31563427
- 著者
- 横澤 俊治,斉川 史徳,熊川 大介
- 著者（英）
- 担当区分
- 筆頭著者,責任著者
- 概要
- Although the record of speed skating has improved worldwide in recent years, the analysis of skating techniques at the international competitions has not progressed. The purpose of this study was to identify the skating technique of the world's leading male speed skaters during the curve of the track in a 1,500-m race. Thirteen skaters who participated in the men's 1,500-m race for the World Cup were selected, including the medalists in the race. Skating motion during the inner curve at the second or third lap was captured using 3 high-speed video cameras. The three-dimensional coordinates of the body were used to calculate the angles of the lower limb joints, the positional relationship between the body center of mass (CM) and the blades, and the heel elevation angle at the instant of the blade-off. All the parameters were analyzed for the correlation with the official time, and the velocity averaged in the section. In result, the characteristics of skaters who held better official time and higher section velocity were as follows: 1) the angular displacement of the right ankle dorsiflexion during gliding was smaller, 2) the angular displacement of the right hip extension and ankle plantarflexion during the push-off and the right heel elevation angle at the instant of the blade-off were smaller, 3) the direction of the right blade horizontal velocity vector was more consistent with that of the CM vector during the right stroke, and 4) the backward displacement of the blade relative to the CM during the right stroke was smaller. These results suggested that in the 1,500-m race the right stroke motion of the world's leading male skater was efficient and easy way to obtain a large centripetal force.
- 概要（英）
- Although the record of speed skating has improved worldwide in recent years, the analysis of skating techniques at the international competitions has not progressed. The purpose of this study was to identify the skating technique of the world's leading male speed skaters during the curve of the track in a 1,500-m race. Thirteen skaters who participated in the men's 1,500-m race for the World Cup were selected, including the medalists in the race. Skating motion during the inner curve at the second or third lap was captured using 3 high-speed video cameras. The three-dimensional coordinates of the body were used to calculate the angles of the lower limb joints, the positional relationship between the body center of mass (CM) and the blades, and the heel elevation angle at the instant of the blade-off. All the parameters were analyzed for the correlation with the official time, and the velocity averaged in the section. In result, the characteristics of skaters who held better official time and higher section velocity were as follows: 1) the angular displacement of the right ankle dorsiflexion during gliding was smaller, 2) the angular displacement of the right hip extension and ankle plantarflexion during the push-off and the right heel elevation angle at the instant of the blade-off were smaller, 3) the direction of the right blade horizontal velocity vector was more consistent with that of the CM vector during the right stroke, and 4) the backward displacement of the blade relative to the CM during the right stroke was smaller. These results suggested that in the 1,500-m race the right stroke motion of the world's leading male skater was efficient and easy way to obtain a large centripetal force.
- 出版者・発行元
- 独立行政法人 日本スポーツ振興センター国立スポーツ科学センター
- 出版者・発行元（英）
- Japan Institute of Sports Sciences, Japan Sport Council
- 誌名
- Journal of High Performance Sport
- 誌名（英）
- Journal of High Performance Sport
- 巻
- 6
- 号
- 0
- 開始ページ
- 139
- 終了ページ
- 151
- 出版年月
- 2020年11月
- 査読の有無
- 査読有り
- 招待の有無
- 掲載種別
- 研究論文（学術雑誌）
- ISSN
- 2434-7299
- DOI URL
- https://doi.org/10.32155/jissjhps.6.0_139
- 共同研究・競争的資金等の研究課題