不同重量球體對過肩投擲中肢段的移動序列性、移動速度以及球速之影響

Effects of Different-Weight Balls on Body-Segment Moving Sequence, Velocity and Ball Velocity in Overarm Throw

劉于詮(Yu-Chuan Liu) ； 陳五洲(Wu-Chou Chen) ； 黃泰源(Tai-Yuan Huang)

《大專體育學刊》 7卷3期 (2005/09) Pp. 245-258

https://doi.org/10.5297/ser.200509_7(3).0019

摘要

The overarm throw is a very common movement for humankind. Furthermore, weight is a crucial factor that influences overarm throw and benefits teaching and training. To verify this effect, 15 male collegers (22.27±3.38years, 174.00±4.38cm, 71.23±7.06kg) were recruited as subjects. The VICON motion analysis system (including seven 250Hz cameras) was used to study body segment moving sequence (BSMS), body segment moving velocity (BSMV) and ball velocity (BV) in the different-weight balls (200g-light ball, 400g-mid ball and 600g-heavy ball) in throwing. The results showed four points. First, by with the increasing weight of the ball, proximal and mid-extremity horizontal BSMS decreased, but the distal-extremity horizontal and vertical BSMS increased. Moreover, the horizontal BSMS of the distal- extremity in light ball and heavy ball throwing were significantly different (p＜.05). Second, BV decreased as the weight of the ball increased and BV in the light, mid and heavy balls were significantly different (p＜.05). Third, BSMV decreased with increase of the weight of the ball. Furthermore, significant differences (p＜.05) were found in forearm horizontal BSMV in light and heavy ball throwing, palm horizontal BSMV in light and heavy ball throwing, forearm vertical BSMV in light and mid ball throwing, forearm vertical BSMV in light and heavy ball throwing, and palm vertical BSMV in light and heavy ball throwing. Fourth, to overcome the increase of ball's weight and avoid the extremities' injuries which might be caused by the weight increase of the ball, the throwing motion was changed from the ”throwing” style to the ”pushing” style. Due to this change, the adding of the proximal- extremity horizontal and vertical velocity would increase. And in light and heavy ball throwing, these values were differently significantly (p＜.05). On the contrary, the adding of the mid-extremity's horizontal and vertical velocities would decrease by increasing the weight of the ball.

關鍵字

不同重量球體 ； 過肩投擲 ； 肢段移動序列性 ； 肢段移動速度 ； 球速

並列摘要

The overarm throw is a very common movement for humankind. Furthermore, weight is a crucial factor that influences overarm throw and benefits teaching and training. To verify this effect, 15 male collegers (22.27±3.38years, 174.00±4.38cm, 71.23±7.06kg) were recruited as subjects. The VICON motion analysis system (including seven 250Hz cameras) was used to study body segment moving sequence (BSMS), body segment moving velocity (BSMV) and ball velocity (BV) in the different-weight balls (200g-light ball, 400g-mid ball and 600g-heavy ball) in throwing. The results showed four points. First, by with the increasing weight of the ball, proximal and mid-extremity horizontal BSMS decreased, but the distal-extremity horizontal and vertical BSMS increased. Moreover, the horizontal BSMS of the distal- extremity in light ball and heavy ball throwing were significantly different (p＜.05). Second, BV decreased as the weight of the ball increased and BV in the light, mid and heavy balls were significantly different (p＜.05). Third, BSMV decreased with increase of the weight of the ball. Furthermore, significant differences (p＜.05) were found in forearm horizontal BSMV in light and heavy ball throwing, palm horizontal BSMV in light and heavy ball throwing, forearm vertical BSMV in light and mid ball throwing, forearm vertical BSMV in light and heavy ball throwing, and palm vertical BSMV in light and heavy ball throwing. Fourth, to overcome the increase of ball's weight and avoid the extremities' injuries which might be caused by the weight increase of the ball, the throwing motion was changed from the ”throwing” style to the ”pushing” style. Due to this change, the adding of the proximal- extremity horizontal and vertical velocity would increase. And in light and heavy ball throwing, these values were differently significantly (p＜.05). On the contrary, the adding of the mid-extremity's horizontal and vertical velocities would decrease by increasing the weight of the ball.

並列關鍵字

different-weight balls ； overarm throw ； body segment moving sequence ； body segment moving velocity ； velocity of ball

參考文獻

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