DISTURBANCE IN HITTING ACCURACY BY PROFESSIONAL AND COLLEGIATE BASEBALL PLAYERS DUE TO INTENTIONAL CHANGE OF TARGET POSITION
DISTURBANCE IN HITTING ACCURACY BY PROFESSIONAL AND COLLEGIATE BASEBALL PLAYERS DUE TO INTENTIONAL CHANGE OF TARGET POSITION
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DOI：
10.2466/30.23.25.pms.116.2.627-639
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发表时间：
2013-04-01
影响因子：
1.6
通讯作者：
Kanosue, Kazuyuki
中科院分区：
文献类型：
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作者：
Higuchi, Takatoshi;Nagami, Tomoyuki;Kanosue, Kazuyuki
本研究调查了熟练的棒球击球手在发球时，面对目标位置的有意改变时的击球控制。12名熟练的男性棒球运动员(男性年龄=24岁，SD=4岁)参与了这项研究。参与者被指示从距地面0.8米的发球台上击球(击球条件)，并故意在球上方挥杆(空中挥杆条件)。参与者的任务是按照交替的顺序，在固定的发球台上对真正的棒球进行15次摆动，并在据说是在真实棒球之上的假想球上进行15次摆动。参与者被指示将球打向中场，就像他们在比赛中击球一样。虽然大多数参与者可以在球棒的甜蜜区击球，但只有一名参与者在空中挥杆条件下做到了这一点。空中挥杆条件下，球棒接触瞬间甜区中心到球中心的平均距离(85 Mm)显著大于击球条件下的距离(38 Mm)。在甜区击打假想的球时，更大的错误可能是由于击球手改变焦点后感知的变化，缺乏接触的预期，和/或挥杆缺乏反馈。有人建议，棒球击球手在故意转移目标时，应该意识到可能会出现准确击球的错误。
The present study investigated bat control of skilled baseball batters during tee batting, faced with an intentional change in target position. Twelve, skilled, male baseball players (M age = 24 yr., SD = 4) participated in the study. Participants were instructed to hit a baseball off a tee 0.8 m from the ground (Hitting condition), and also to deliberately swing just above the ball (Air Swing condition). The task for the participants was to perform, in alternate order, 15 swings at a real baseball on a stationary tee and 15 swings at an imaginary ball that was said to be on top of the real baseball. The participants were instructed to hit the ball toward center field just as they would hit in a game. While most participants could hit the real ball in the sweet area of the bat, only one participant did so in the Air Swing condition. Average distances from the center of the sweet area to ball center at the moment of ball-bat contact in the Air Swing condition (85 mm) were significantly greater than the distance in the Hitting condition (38 mm). The larger error in hitting an imaginary ball in the sweet area could be due to perceptual changes following the batter's altered focus, expectation of a lack of contact, and/or lack of feedback from the swing. It was suggested that baseball batters should be aware of the possible error in hitting accurately when they intentionally shifted the target.