書誌事項
- タイトル別名
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- A-8 Changes in the mechanical works of pitching during a simulated baseball game
- 投球動作の繰り返しによる下肢の関節仕事の変化
- トウキュウ ドウサ ノ クリカエシ ニ ヨル カシ ノ カンセツ シゴト ノ ヘンカ
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The purpose of this study was to investigate the changes on mechanical work of the lower limb joints during baseball pitching in a simulated game. One male college baseball pitcher threw 15 pitches in an inning for 9 innings (135 pitches) in an indoor pitcher's mound with two force platforms. Rest time between innings was 6 minutes. Three-dimensional positions of 47 reflective markers attached to subject were tracked by an optical motion capture system (Vicon Motion System 612, Vicon Motion Systems) with eight cameras (250Hz). For subject 75 fastball pitches (1st, 3rd, 5th, 7th, and 9th innings) were chosen for analysis. As the main results, the hip joint extension absolute and negative work of the stride leg decreased with increasing the number of pitches. The ankle joint extension absolute and negative work of the stride leg increased with increasing the number of pitches. These results suggest that the hip joint extension torque of the stride leg was needed to maintain for higher performance in baseball pitching.
収録刊行物
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- ジョイント・シンポジウム講演論文集:スポーツ工学シンポジウム:シンポジウム:ヒューマン・ダイナミックス
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ジョイント・シンポジウム講演論文集:スポーツ工学シンポジウム:シンポジウム:ヒューマン・ダイナミックス 2009 (0), 39-44, 2009
一般社団法人 日本機械学会
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詳細情報 詳細情報について
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- CRID
- 1390282681045318016
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- NII論文ID
- 110008010635
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- NII書誌ID
- AA11902376
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- ISSN
- 24331309
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- NDL書誌ID
- 10767789
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可