| Summary: | 碩士 === 建國科技大學 === 自動化工程系暨機電光系統研究所 === 105 === In taekwondo, the spinning hook kick possesses a special advantage
of counterattack and containment. The impact is quite powerful and able
to knock down opponents frequently and unexpectedly because it
happens so quickly. Thus, the spinning hook kick can deter competitors
from offensive tactics as they try to contact you. The spinning hook kick
often results in high score action. Indeed, it may result in a critical impact,
thereby winning the match. The author has investigated literature and
research, both domestic and foreign. He studied the analyses and
applications of movement of the spinning hook kick. The contribution of
the literature review was found to be sparse. Therefore, the purpose of
this study was to understand the spinning hook kick velocity including
minimum, maximum, and mean；and further, to analyze the action types
of technical variations/imperfections with their different effects on
kicking velocity. The research method was to probe into the kicking
performance on fifteen taekwondo athletes (ages 17 to 20 years). Based
on biomechanical characteristics to execute data analysis from kicking is
used as the research. The instrument of study used was Sony Cyber-shot
DSC-RX100 digital camera, and After Effects cc capturing system. The
study mainly utilized the statistical software SPSS (Statistical Package for
the Social Science) version 21.0 to deal with the descriptive analysis,
chi-square test, independent sample t test, and one-way ANOVA
(Analysis of Variance), with a significance level of α = .05. The results
showed that：1. The kicking velocity mean = .5261±.05998s with the
minimum = .43s and the maximum = .75s. 2. The frequency distribution
of the action types of technical variations/imperfections is as follows
support-foot moving 21times (17％), stance-position squatting 11times
(8.9 ％ ), support-foot part (heel) rotating 18 times (14.6 ％ ), arms
unfolding 24 times (19.6％), without flexing the knee of the kick-foot 12
times (9.8％), turn-back kicking 37 times (30.1％)(p<.001). It was further
confirmed, that turn-back kicking was the primary factor in causing the
action types of technical variations/imperfections from the spinning hook
kick, which was followed by arms unfolding, support-foot moving,
support-foot part (heel) rotating, without flexing the knee of the kick-foot,
turn-back kicking, and stance-position squatting. 3. In terms of kicking
velocity differences, the means were .49±.026 and 56±.056s, respectively
(p<.05). There were fewer the action types of technical
variations/imperfections. The athletes would have faster kicking velocity
and better sports performance by keeping things simple. 4. Here were the
differences of kicking velocity in the action types of technical
variations/imperfections. Support-foot part (heel) rotating could be one of
the main factor in slowing the kicking velocity of the spinning hook kick
(p<.05). Moreover, there was the less effect on support-foot moving or
stance-position squatting. Both of them were still needed to make
corrections for enhancing sports performance and effective attacking
levels. Therefore, the action types of technical variations/imperfections
might clearly reveal athletic shortcomings. The suggestions of the author
would indicate there is a need for a systematic breakdown of each
movement by experts and scholars so they could be standardized and
made more effective.
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