| アイテムタイプ |
紀要論文 / Departmental Bulletin Paper(1) |
| 公開日 |
2026-03-24 |
| タイトル |
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タイトル |
Media Pipe の関節位置推定機能を用いたニュースポーツモルックにおける投動作解析に関する研究―投てき距離の相違に着目して― |
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言語 |
ja |
| タイトル |
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タイトル |
Analyzing Throwing Motions in Mölkky, a New Sports, using the MediaPipe with particular attention to how distance affects the motion |
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言語 |
en |
| 言語 |
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言語 |
jpn |
| キーワード |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
Mölkky |
| キーワード |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
New Sports |
| キーワード |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
Throwing Motions |
| キーワード |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
MediaPipe |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
departmental bulletin paper |
| ID登録 |
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|
ID登録 |
10.34411/0002000197 |
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ID登録タイプ |
JaLC |
| 著者 |
井戸沼, 朋弥
小野澤, 豪
竹本, 陽翔
森年, スティーブン 航太郎
家安, 涼輔
間地, 完太
林, 和司
花田, 雅起
谷代, 一哉
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| 抄録 |
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内容記述タイプ |
Abstract |
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内容記述 |
【Objective】While extensive research exists on throwing mechanics in major sports like baseball and basketball, studies on newer sports such as Mölkky (a Finnish throwing game) remain limited. This study aimed to clarify differences in throwing motions between two distance conditions in Mölkky: 3.5 meters (short) and 6.5 meters (long).【Methods】Video recordings of throws were analyzed, with frames extracted at three key phases: Take-Forward (TF), Take-Back (TB), and Release (REL). Joint positions were automatically detected using MediaPipe, a cross-platform pose estimation tool. Five kinematic parameters were calculated: elbow joint angle, shoulder joint angle, trunk forward tilt angle, hip joint angle, and knee joint angle. These metrics were compared across distance conditions.【Results and Discussion】Trunk forward tilt angle: at REL, the 3.5m condition showed 4.2° greater flexion compared to 6.5m. Elbow joint angle: The 6.5m condition exhibited greater extension by 2.4° at TB and 2.3° at REL. Shoulder joint angle: at TF, the 6.5m condition demonstrated 6.8° more flexion, while at TB, it showed 19.8° greater extension. Knee joint angle: The 6.5m condition displayed increased flexion by 4.5° at TF, 4.6° at TB, and 4.5° at REL. Hip joint angle: No significant differences were observed between distances.【Conclusion】 Longer throwing distances (6.5m) in Mölkky appear to involve greater reliance on arm strength and strategic use of knee flexion for trajectory adjustment, whereas shorter distances (3.5m) prioritize trunk flexion. These findings highlight biomechanical adaptations to distance-specific demands in Mölkky, providing foundational insights for skill development and training methodologies in this emerging sport. |
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言語 |
en |
| 書誌情報 |
神奈川工科大学研究報告.B,理工学編
巻 50,
p. 7-13,
発行日 2026-03-01
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| 出版者 |
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出版者 |
神奈川工科大学 |
| ISSN |
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収録物識別子タイプ |
PISSN |
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収録物識別子 |
21882878 |
| 書誌レコードID |
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収録物識別子タイプ |
NCID |
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収録物識別子 |
AA12669200 |
| フォーマット |
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内容記述タイプ |
Other |
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内容記述 |
application/pdf |
| 著者版フラグ |
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出版タイプ |
VoR |
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出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
kkb-050-002.pdf (989.1 KB)
