天津体育学院学报
天津體育學院學報
천진체육학원학보
Journal of Tianjin Institute of Physical Education
2014年
5期
433~438
,共null页
姜芹先 周里 张钊 潘景文 李芳 陆青
薑芹先 週裏 張釗 潘景文 李芳 陸青
강근선 주리 장쇠 반경문 리방 륙청
高尔夫 挥杆 杆头速度 肩髋夹角 延迟释放 前倾 侧屈
高爾伕 揮桿 桿頭速度 肩髖夾角 延遲釋放 前傾 側屈
고이부 휘간 간두속도 견관협각 연지석방 전경 측굴
golf; B-Swing; club head speed; X-factor; delay release; forward tilt angle; lateral bending angle
无球挥杆与挥杆击球普遍被认为是同一动作,所以无球挥杆动作顺畅稳定的球手如果不能将其发挥到挥杆击球中则被认为是动作未定型或者发挥不稳定的表现。目的：有球和无球挥杆动作是否相同,杆头速度是否存在差异,这些差异由哪些运动学要素决定。方法：熟练球手随机做5次有球挥杆和5次无球挥杆,计算杆头速度、肩髋夹角、躯干前倾角、躯干侧屈角和主导侧前臂角和杆-臂角,采用配对T检验对比有球和无球挥杆动作各要素间的差异。结果：击球时,无球挥杆的杆头速度比有球大,且两者差异有统计学意义（P〈0.05）;无球挥杆动作下杆过程肩髋夹角最大值较小,球杆释放时的前臂角较大,球杆释放过程杆-臂角的变化幅度较小,下杆至击球点躯干的前倾角度变化较大,击球时躯干侧屈角度较小,且这些决定杆头速度的运动学要素与有球挥杆动作的差异均有统计学意义（P〈0.01）。结论：有球和无球挥杆动作并不相同,球手在2种挥杆动作中表现出的杆头速度和相关运动学参数的差异体现了他们具有根据不同任务准确调控身体环节的协调能力;同时也提示,在高尔夫挥杆教学过程中,经无球挥杆练习掌握连贯动作后,必须通过加强挥杆击球练习才能达到有效提高杆头速度的目标。
無毬揮桿與揮桿擊毬普遍被認為是同一動作,所以無毬揮桿動作順暢穩定的毬手如果不能將其髮揮到揮桿擊毬中則被認為是動作未定型或者髮揮不穩定的錶現。目的：有毬和無毬揮桿動作是否相同,桿頭速度是否存在差異,這些差異由哪些運動學要素決定。方法：熟練毬手隨機做5次有毬揮桿和5次無毬揮桿,計算桿頭速度、肩髖夾角、軀榦前傾角、軀榦側屈角和主導側前臂角和桿-臂角,採用配對T檢驗對比有毬和無毬揮桿動作各要素間的差異。結果：擊毬時,無毬揮桿的桿頭速度比有毬大,且兩者差異有統計學意義（P〈0.05）;無毬揮桿動作下桿過程肩髖夾角最大值較小,毬桿釋放時的前臂角較大,毬桿釋放過程桿-臂角的變化幅度較小,下桿至擊毬點軀榦的前傾角度變化較大,擊毬時軀榦側屈角度較小,且這些決定桿頭速度的運動學要素與有毬揮桿動作的差異均有統計學意義（P〈0.01）。結論：有毬和無毬揮桿動作併不相同,毬手在2種揮桿動作中錶現齣的桿頭速度和相關運動學參數的差異體現瞭他們具有根據不同任務準確調控身體環節的協調能力;同時也提示,在高爾伕揮桿教學過程中,經無毬揮桿練習掌握連貫動作後,必鬚通過加彊揮桿擊毬練習纔能達到有效提高桿頭速度的目標。
무구휘간여휘간격구보편피인위시동일동작,소이무구휘간동작순창은정적구수여과불능장기발휘도휘간격구중칙피인위시동작미정형혹자발휘불은정적표현。목적：유구화무구휘간동작시부상동,간두속도시부존재차이,저사차이유나사운동학요소결정。방법：숙련구수수궤주5차유구휘간화5차무구휘간,계산간두속도、견관협각、구간전경각、구간측굴각화주도측전비각화간-비각,채용배대T검험대비유구화무구휘간동작각요소간적차이。결과：격구시,무구휘간적간두속도비유구대,차량자차이유통계학의의（P〈0.05）;무구휘간동작하간과정견관협각최대치교소,구간석방시적전비각교대,구간석방과정간-비각적변화폭도교소,하간지격구점구간적전경각도변화교대,격구시구간측굴각도교소,차저사결정간두속도적운동학요소여유구휘간동작적차이균유통계학의의（P〈0.01）。결론：유구화무구휘간동작병불상동,구수재2충휘간동작중표현출적간두속도화상관운동학삼수적차이체현료타문구유근거불동임무준학조공신체배절적협조능력;동시야제시,재고이부휘간교학과정중,경무구휘간연습장악련관동작후,필수통과가강휘간격구연습재능체도유효제고간두속도적목표。
No-ball-Swing and B-Swing are commonly believed that they are the same movement. So who got the good No-ball-Swing is accepted that they can act as good as doing B-Swing. If they can＇t, they are generally believed it is the poor performance. Purpose： Compare kinematic factors which influent club head speed, try to find whether there is difference between B-Swing and No-ball-Swing of the same golfer. Methods： All participants were skilled golfers, and they were asked to do five No-ball-Swing and five B-Swing. Then the club head speed was compared if there was significant difference, and then the kinematic factors were analyzed. Results： The club head speed of B-Swing was significantly greater than NB-Swing （P〈0.05）. All the difference in X-factor and delay released of club during downswing, lateral bending angle and forward tilt at impact were statistical significance （P〈0.01）. Conclusions： B-Swing and NB-Swing are not the same movement. In the process of teaching the golf swing, golfers should consistently practice hitting the ball after obtain coherent movement. Then they can achieve the ability how to improve the velocity of the club head.
