Biomechanical analysis on long throw-in technique in soccer

• Project/Area Number: 22800070
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Single-year Grants
• Research Field: Sports science
• Research Institution: Yamagata University
• Principal Investigator: SHINKAI Hironari 山形大学, 地域教育文化学部, 講師 (10581217)
• Project Period (FY): 2010 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥2,717,000 (Direct Cost: ¥2,090,000、Indirect Cost: ¥627,000); Fiscal Year 2011: ¥1,352,000 (Direct Cost: ¥1,040,000、Indirect Cost: ¥312,000); Fiscal Year 2010: ¥1,365,000 (Direct Cost: ¥1,050,000、Indirect Cost: ¥315,000)
• Keywords: サッカー / スローイン / 動作分析 / ロングスローイン / 助走速度 / 体幹傾斜角度 / 肩関節水平屈曲 / ボール速度 / ボール投射角度 / ボールリリースポイント / 前足接地位置

Research Abstract

The main purpose of this study was to reveal the characteristics of long throw-in motion in soccer. The throw-in motions of university soccer players were analyzed three-dimensionally using high-speed cameras. As a result, large trunk rotation performed at effective time and more anterior position of the ball release point were observed in the motion of long distance thrower. These characteristics have the effect on increase in the force acting on the ball leading to long throwing distance. Moreover, since these motions are relatively easy to judge visually, it was considered that these points can be effectual assessment index for throw-in coaching.