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台目までの前半局面の疾走速度は、競技歴を重ねるにつれ向上し、400mH の記録も向上していた。さらに、１台毎に脚を入れ替えて逆脚を使用する14 歩を使用した場合に、利き足のみの15歩よりも疾走速度は向上していた。そのため、スプリント能力が向上した場合に、逆脚を使用することを懸念し、15 歩のままピッチを速くして前半の疾走速度向上を狙うよりも、多少熟練度が低くても14 歩を使用することで、前半の疾走速度は向上することが示唆された。","subitem_description_language":"ja","subitem_description_type":"Abstract"}]},"item_1729230278053":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"open access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_abf2"}]},"item_1729230588476":{"attribute_name":"収録物識別子","attribute_value_mlt":[{"subitem_source_identifier":"1349-2780","subitem_source_identifier_type":"PISSN"},{"subitem_source_identifier":"AA11371994","subitem_source_identifier_type":"NCID"}]},"item_1729564662870":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_access","date":[{"dateType":"Available","dateValue":"2024-12-03"}],"filename":"男子400ｍハードル選手を対象とした事例研究― 14歩および15歩使用選手を対象として ―.pdf","filesize":[{"value":"2.6 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