Search Word: Performance analysis, Search Result: 165
121 국가대표 태권도 선수의 시합준비 기간에 따른 심상전략 탐색
Tae-Jin Son ; Inchon Park Vol.33, No.4, pp.588-600 https://doi.org/10.24985/kjss.2022.33.4.588
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Abstract

This study aimed to explore elite taekwondo competitors’ imagery strategies . The study participants were 10 elite taekwondo athletes, who worked for S business team. Data were collected through open-ended questionnaires and in-depth interviews. The data were collected based on Gould et al. (1992)’s proposed qualitative research method. The inductive content analysis of the imagery was conducted following the imagery type of Paivio (1985) and Suinn (1996). The law data and case of imagery were separated by three specialists. The results were as follows. First, elite taekwondo competitors generally used the types of imagery proposed by Paivio (1985) and Suinn (1996). In particular, imagery of anxiety regulation appeared with the highest frequency among factors and ordered imagery of motivation, imagery of skills, imagery of mental skills, and imagery of competition. Second, elite taekwondo competitors mainly used imagery of skills before two weeks for competition. They mainly used imagery of anxiety regulation the day before a competition. They used imagery of anxiety regulation and imagery of motivation on the day of a competition. They used imagery of motivation after the competition. In sum, elite taekwondo competitors used individual strategies in terms of imagery in order to ensure effective training and peak performance in competition. The strategy of imagery was applied differently based on the juncture of the competition.

122 한국 여자 프로 골프 선수들의 서열문화 탐색
Seungyup Lim Vol.33, No.2, pp.269-277 https://doi.org/10.24985/kjss.2022.33.2.269
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Abstract

PURPOSE This study aimed to explore the ranking culture of Korean female professional golfers under the assumption that side-effects such as performance degradation and sports desocialization result from the culture. METHODS To collect data, semistructured, open-ended interviews were conducted with eight former KLPGA Tour players, and the data were analyzed through the inductive analysis method suggested by Hatch (2002). RESULTS Our findings were the following: (1) There has been an oppressive culture regarding the salutation attitude among Korean female professional golfers. (2) The ranking culture of Korean female professional golf players formed a background of voluntarily noticing seniors from junior players. (3) As part of subduing juniors who go against the hierarchy culture, the phenomenon of group bullying by senior players was found. (4) There are players who influx the KLPGA tour after their tour career in foreign countries becomes uncomfortable with the ranking culture of Korean female professional golfers, or in worse cases, they leave the tour because of maladaptation. (5) Rather than protesting or raising issues, parents of players, especially those of junior players who have suffered damage against the ranking culture tend to accept the practices and endure disadvantages. CONCLUSIONS Follow-up studies on ways to improve them and additional studies on ranking culture and side-effects that may occur between athletes in other sports are required to restore the ethics of Korean sports and ultimately normalize them.

123 A Study on the Range of Defense for Handball Goalkeeper in a 9-meter Jump Shot
Jonghyun Yang ; Junwoo Kwon Vol.32, No.3, pp.437-444 https://doi.org/10.24985/kjss.2021.32.3.437
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Abstract

PURPOSE The purpose of this study is to examine the goalkeeper’s area of defense and how the range varies depending on the relative position of the goal, goalkeeper, and ball in a 9-meter jump shot during handball matches. METHODS Data was collected from seven qualifying divisions in mens handball from the 99th National Sports Festival in Korea. A total of 231, 9-meter jump shots were analyzed with the goalkeeper‘s area of defense measured from the point the ball left the shooter’s hand and calculated based on the relative position of the goal, goalkeeper, and ball. Video analysis was conducted using the Kwon3D 3.01 program and three-dimensional coordinates calculated using the DLT method. RESULTS First, dimension of handball goals measure 3m wide and 2m high, however, results show that goalkeeper’s actual area of defense was narrower than the width of the goal posts, while vertically, area exceeded the height of the cross bar. Second, if the goalkeeper defended the striker’s shot from the side rather than from the front, the goalkeeper’s defense range was higher for the opposite side of the goal post than the near side of the goal post. CONCLUSIONS Key factors influencing goalkeeper’s area of defense include height of shot and position of goalkeeper. Results also indicate that vertical movements are more important than horizontal movements for goalkeepers in handball thus such implementation in training may lead to performance enhancement.


124 The Field application of youth soccer training program based on the motor learning techniques
Seungmin Lee ; Sang-Soo Byun ; JongSeong An ; Young-Kuk Lee ; Jae Yeun Lee ; Won Kyu Shin ; Ji Myung Jang Vol.31, No.3, pp.432-448 https://doi.org/10.24985/kjss.2020.31.3.432
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Abstract

Purpose This study was to investigate the effect of various motor leaning techniques which were applied on the youth soccer training program. Methods 12 elementary soccer players and the director of R youth soccer team have participated in the study. The expertise level of youth soccer team were ranged from beginner to advance. To investigate the effect of new soccer training program we adopted a methodology of action research. We first analyzed the problems of original youth soccer program and reconstructed the training program considering of individualized characteristics. The 3 main problems of original soccer program (1. feedback provisions 2. difficulty of task level 3. time distribution of training) have been reconstructed by four motor learning experts. For the data analysis, several qualitative analyze techniques were conducted to observe player’s improvements. Results First, participants had a better understanding on proper motion of shooting and lifting skills from the guidance techniques. Second, utilizing the personal skills and team cohesion have been improved by the modified rules and space competition. Third, the ability of active problem solving have been improved from the self-learning environment. Forth, the player’s confidence level have been improved by eliminating performance outcome. Conclusions From the aspects of variety circumstances in sport education field, the comprehensive motor learning program should be developed and applied.


125 Effect of functional fatigue protocol on static and dynamic postural control of lower extremities
Sul Gi Na Kim ; Sung Cheul Lee ; Chang Young Kim ; Hee Seong Jeong ; Sae Yong Lee Vol.29, No.4, pp.603-612 https://doi.org/10.24985/kjss.2018.29.4.603
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Abstract

Purpose The purpose of this study was to investigate the effects of a functional fatigue protocol on lower extremity dynamic and static postural control. Methods A total of 20 physically active collegiate students participated in this study (ten males, ten females; age 22.5±2.7 years; mass 67.0±13.0 kg; height 168.0±8.9 cm). A unilateral stance with eyes closed for 10 seconds was performed to test static postural control using a balance force plate and single-leg drop landing on 30cm box was performed as a dynamic postural control test and captured using VICON motion analysis system. Results The results of this study showed an average heart rate of 176.3 beats/minute, an 18 rating on the perceived exertion scale, significant differences in blood lactate, and a static postural control deficit after fatigue as compared with before fatigue(p<.05). Dynamic postural control after fatigue changed landing strategy in the form of stiff landing. Knee flexion was decreased at initial contact and at peak vertical ground reaction force, also, both decreased valgus and internal rotation of knee joint. Conclusions This protocol may use for enhancing fatigue-endurance training as well as for inducing fatigue. Further, to ascertain a landing strategy, it is recommended to increase landing height to clearly observe changes in landing strategy.


126 Visual search strategies in badminton serve on expertise levels
Donghyun Ryu ; Seok-Hyun Song ; Dong-Wook Han Vol.29, No.2, pp.362-375 https://doi.org/10.24985/kjss.2018.29.2.362
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Abstract

[Purpose] The purpose of this study was to examine the differences in visual search strategies between expert and novice badminton players while performing badminton serve. [Method] To this end, expert (more than 10 years experience) and novice (less than 6 months experience) badminton players performed 15 trials of two types of serve (i.e., short-serve and long-serve), in total 30 trials. All the participants’ eye movement was recorded during each trial, and mean fixation duration, fixation distribution, final fixation duration and location, and gaze entropy were analyzed. [Results] The results showed that there was no difference in mean fixation duration between expert and novice players. The analysis of mean fixation duration on each location showed that participants fixated more on the net while doing short serve whereas fixated more on the space when they did long serve. In particular, expert players fixated more on the space while doing long serve than novice players, and fixated more on the net and racquet for the short serve. However, novice players fixated more on the location of shuttle would be landed. The final fixation duration was not different between expert and novice players. Further, expert players showed higher gaze entropy than novice players. [Conclusion] The findings indicate that expert players fixated more on the net for the short serve, and the space for the long serve, and visual search strategies of experts were more varied than novice players.


127 Verification of early childhood health improvement program
Gilsook Kim Vol.29, No.1, pp.24-38 https://doi.org/10.24985/kjss.2018.29.1.24
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Abstract

[Purpose] The present study attempted to verify the effectiveness of an early childhood physical health improvement program (subsequently in the present study, KICCE Early Childhood Health Improvement Program) developed in Korea by modifying and improving the Mission-X: Train Like an Astronaut program developed by NASA to be suitable for children of ages 4 and 5. [Methods] The subjects in the study were 679 children at 7 facilities in Seongnam city, Osan city, and Yongin city, of which 4 were daycares and 3 were kindergartens. The participant group consisted of 339 children, and the control group consisted of 340 children. The program consisted of total 24 activities 3 times a week over 8 weeks, of which 8 activities were related to nutrition and 16 activities were related to physical activity, and in the 9th and 10th weeks, the 16 physical activities were reconfigured and performed 3 times a week. Physical parameters and related fitness parameters were measured before and after the program, and an ANCOVA analysis was performed in which descriptive statistics and scores before the program were the covariate variables. [Results] The results show that first, growth statuses of participant children were in the upper middle section of the distribution, and second, of the 6 fitness developments, flexibility, balance, and quickness were improved, and in most areas, boys and below-normal-BMI group showed beneficial effects. [Conclusion] Thus, KICCE Early Childhood Health Improvement Program is conclusively proven to be effective for early-childhood physical development.

128 The application and its effect of life skills program in sport
Tae-Hee Lim ; Chang-Yong Jang Vol.28, No.3, pp.577-591 https://doi.org/10.24985/kjss.2017.28.3.577
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Abstract

Purpose This study was to investigate the systematic application of the life skills program and its effects in a sport setting. Methods Participants were 14 college students(8 males and 6 females) majoring in Taekwondo. Survey tools were utilized to measure items of life skills and journals. Data analyses were conducted by using Excel program and inductive content analysis. Results First, life skills in this study consisted of goal setting, self-talk, imagery, cognitive restructuring. Life skills program has undergone a procedure, such as the introduction, training, development, application, and evaluation. Second, the average scores of life skill variables have been changed according to measured points. Specifically, the average scores of goal setting and self-talk were highly increased over time and the average score of imagery indicated gradual rising line. The average score of negative thought was slightly reduced over time. Third, regarding effects of this program, participants’ responses were categorized into six components; performance enhancement, positive thoughts, chances of change, goal setting, struggling efforts, and motivation formation. Further, participants stated this program was a great opportunity to develop these components. Conclusion The application of life skills program in sport settings will contribute to participants’ life span developmental change in cognitions, emotions, and behavior.


129 The influence of coupled rTMS and prism illusion on motor cortical activity and motor function recovery in stroke: A case study
Seung-Min Lee ; Jong-Seong An Vol.28, No.2, pp.361-373 https://doi.org/10.24985/kjss.2017.28.2.361
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Abstract

Purpose The purpose of this study was to investigate the effects of coupled high frequency rTMS and prism illusion in elderly stroke patients, based on the result of previous studies which discovered the effect of bilateral training, mirror rehabilitation treatment, and rTMS. Methods This is a case study of 4 stroke patients who were homogeneous on the basis of selection criteria such as brain injury area, duration of onset, degree of upper limb movement function. A total of 24 rehabilitation sessions were conducted three times a week during the training period, and TMS(transcranial magnetic stimulator), EMG, motion analysis system, and prism optical glasses were used for apparatus. Results The results of the study were as follows: Combined rehabilitation exercises were found to be beneficial to restore upper limb function in stroke patients. Particularly, the maximum speed of stretching and JTT(Jebsen-taylor Test) performance showed improvement after training. The amount of total map volume and MEP(megnetic evoked potential) increased in evaluation of neurophysiology. Conclusion The upper limb dysfunction of stroke patients could be restored by combine rehabilitation exercises.


130 Development of a Communication Training Program and Application for a College Ice Hockey Team
Sanghyun Kwon ; Jaesub Choi ; Dongwon Yook Vol.27, No.4, pp.941-956
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Abstract

This study was designed to develop a communication training program for college ice hockey teams and examine the effects of this program. College ice hockey players and coaches participated in this study. The various types of data were collected and analyzed to assess the needs of the program and to develop the program with expert meetings. To analyze the effects of the developed program, questionnaires, experience reports, and in-depth interviews were conducted as measures. The results of this study are as follows. First, ice hockey team communication consisted of eight factors (i.e., sympathy, respect, trust, two-way verbal communication, firm expression of opinion, training program communication, developing rapport, and cohesion). Thus, the program developed based on eight factors and consisted of three stages of total 12 sessions which was 90 min to 100 min long. Second, this program increased communication satisfaction, coach-athlete interaction, group cohesion and exercise effectiveness, and these quantitative results were statistically significant. Moreover, qualitative analysis revealed that this program enhanced sympathy, social cohesion, and task cohesion among participants as well as positively changed their communication skills better than before. The communication training program which was developed through this study could provide basic information of a communication training program in the sports domain and positively influence overall sports team effectiveness and performance.


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