- 期刊
巧固球高壓射球肩、肘關節之角度與球速關係之探討
The Relationship among Shoulder, Elbow Angle and Ball Velocity of Smash Shooting Movement in Tchoukball
摘要
本研究目的在針對二名優秀巧固球選手高壓射球騰空階段上肢段運動學相關參數的變化進行探討分析。本實驗以數位攝影機(JVC 9800U; 120Hz)進行3D拍攝，以APAS動作分析系統為主要的分析系統，將其影像資料數位化，各取有效樣本十次以獲取運動學參數。在本研究所定義射球時上肢動作分為後拉動作期與揮臂動作期兩個階段，比較肩、肘關節的角度與出手瞬間球速的關緣。本研究結果顯示出，A、B兩位選手使用高壓射球法時，其上肢動作的肩、肘關節角度的變化型態有明顯的不同。從本文中也可以發現兩位選手在不同肩、肘關節的角度與出手瞬間球速之間的關係並不具有一致性。本文僅就肩、肘關節角度等運動學參數與出手瞬間球速的關係、來探討高壓射球法的上肢動作。期望爾後的學者可以更多選手為受試者進行運動學參數搜集以提昇研究的廣度。
並列摘要
The purpose of this study is aims at the elite tchoukball athletes' smash shooting movements. We focus on the kinematics parameters varieties of athletes' upper segments that in the air phase. Two digital cameras (JYC 9800U; 120Hz) are used to videotape the process. APAS is used to digitize films and get the 3D kinematics parameters. Each of the two subjects had 10 valid samplings. In the study we divided the smash shooting movements in pull back phase (PBP) and smash phase (SP). Compare upper segments joints' degrees and balls' release velocities shows the two subjects have different smash shooting movement types. In order to wide the application of the study more subjects is needed for future study.