[논문]Effects of Bat Type on the Swing Motion of High School Baseball Athletes

Choi, Min Ra; Song, Sung Woo; Cha, Myung Joo; Shin, Min Young; Lee, Ki Kwang

doi:10.5103/kjsb.2018.28.2.87

Effects of Bat Type on the Swing Motion of High School Baseball Athletes 원문보기

한국운동역학회지 = Korean journal of sport biomechanics, v.28 no.2, 2018년, pp.87 - 92

Choi, Min Ra (Biomechanics & Sports Engineering Lab., Kookmin University) , Song, Sung Woo (Biomechanics & Sports Engineering Lab., Kookmin University) , Cha, Myung Joo (Biomechanics & Sports Engineering Lab., Kookmin University) , Shin, Min Young (Biomechanics & Sports Engineering Lab., Kookmin University) , Lee, Ki Kwang (Biomechanics & Sports Engineering Lab., Kookmin University)

Abstract ▼ AI-Helper

Objective: The purpose of this study was to investigate the factors affecting two kinds of bat swing behavior through kinematic analysis. Method: A total of 32 high school baseball players participated in this study. The ball was placed on the tee-ball in a position where the subject could easily swing and the standard bat swing was performed as quickly and as accurately as possible using aluminum bats and wooden bats. Results: The aluminum bat showed a rapid swing speed of about 1.79 m/sec compared to the wooden bat. The speed of the batted ball was found to be significantly greater for the aluminum bat than for the wooden bat. In addition, although the difference between the shoulder-pelvis rotation angle according to the type of bat was not indicated, there was a statistically significant difference between the aluminum bat and the wooden bat in terms of the rotational angular velocity. Conclusion: Even though the results can explain the difference between the bat swing speed and the speed of the batted ball depending on the bat's material, it is difficult to explain the difference depending on the type of bat at the shoulder-pelvis rotation angle. However, shoulder-pelvic rotation angular velocity appears to be higher for the aluminum bat, and the differences in the type of bat is considered to be related to the batting swing factor.

주제어

표/그림 (6)

표 Table 1. Physical characteristic of subjects (M ± SD)
그림 Figure 1. Placement of reflective markers
그림 Figure 3. Event
그림 Figure 2. (A) Ball marker, (B) Bat marker, (C) Baseball tee
표 Table 2. T-test results for bat swing maximum speed, batted maximum speed (M ± SD)
표 Table 3. T-test results for should-pelvis rotation max angle, angular velocity (M ± SD)

AI 본문요약
AI-Helper

* AI 자동 식별 결과로 적합하지 않은 문장이 있을 수 있으니, 이용에 유의하시기 바랍니다.

문제 정의

Accordingly, the objective of the present study was to perform kinematic analysis on the effects of different types of bats (same weight and length) on the baseball swing of high school baseball players.

제안 방법

In the study, an infrared 3D motion capture system (Vicon MX-T10, T40, Vicon Inc, UK) was used in analyzing the baseball swings of the participants. A total of 10 motion capture cameras were set up around the participant and the images were captured at a rate of 300 Hz.
Prior to the actual baseball swings, the participants performed regular warm-up exercises to loosen up, after which, they took practice swings to adjust where their front foot would land after the swing on the GRF measurement system. Moreover, once the participants adjusted the height of the ball on the baseball tee to levels that would allow them to swing the bat comfortably, they began hitting the ball off the tee.
The objective of the present study was to conduct a kinematic analysis using two different types of bats (same length and weight) to identify the factors that influence the baseball swings of high school baseball players. In baseball, quick bat speed is an important element in that it enables the player to the hit the ball harder and perform more accurate batting by allowing enough response time to adjust to how the ball changes in flight.
The participants performed standard baseball swings to contact the ball as quickly and accurately as possible. The participants randomly selected which bat to use and in which order in performing the baseball swings.

대상 데이터

8 cm) in length and 30 oz (850 g) in weight, were used. The balls used in the study were official KBO game balls. Moreover, a baseball tee was used to allow the participant to set the ball height to a level where the baseball swings can be performed comfortably.
The participants in the present study consisted of 32 baseball players from KBA-registered high schools who have at least 5 years of baseball playing experience. The physical characteristics of the participants are shown in Table 1.
To set the events within a baseball swing motion, a ground reaction force (GRF) measurement system (OR6-7, AMTI, USA) was used with a measurement rate of 1,800 Hz. To investigate the differences on the type of baseball bat used, an aluminum bat (B9, Easton Baseball Bats, USA) and a wooden bat (K1M, BMC, USA), both 33 in (83.8 cm) in length and 30 oz (850 g) in weight, were used. The balls used in the study were official KBO game balls.

데이터처리

For statistical analysis on the differences in kinematic variables of baseball swing motion, the present study derived the mean and standard deviation of each measured variable data, which were tested by a paired t-test using SPSS 23.0 (IBM, USA). In the analysis, the significance level was set to p=.

성능/효과

The results indicated that aluminum bat showed a bat speed of 36.23±1.77 m/sec, which was statistically significantly higher than 34.44±1.85 m/sec shown by the wooden bat (p<.000).
The results indicated that aluminum bat showed a maximum batted-ball velocity of 37.15±2.54 m/sec, which was statistically significantly higher than 34.62±3.01 m/sec shown by wooden bat (p<.000, Table 2).

후속연구

It is necessary to improve the current issue of using wooden bats in high school baseball games by changing wooden bats to aluminum bats. It is also believed that, based on the findings in the present study, additional future studies should examine the mechanical aspects associated with changes in the batting stance and form of players based on the material, weight, and length of the bat.

참고문헌 (36)

Bahill, A. T. & Freitas, M. M. (1995). Two methods for recommending bat weights. Annals of Biomedical Engineering, 23(4), 436-444.

상세보기
Bahill, A. T. & Karnavas, W. J. (1989). Determining ideal baseball bat weights using muscle force-velocity relationships. Biological Cybernetics, 62(2), 89-97.

상세보기
Bahill, A. T. & Karnavas, W. J. (1991). The ideal baseball bat. New Scientist, 130(1763), 26-31.
Bryant, F. O., Burkett, L. N., Chen, S. S., KrahenBuhl, G. S. & Lu, P. (1977). Dynamic and Performance characteristics of baseball bats. Research Quarterly, 48(3), 505-509.

상세보기
Choi, I. H. (2009). A comparative study of striking power of each batting order depending upon changes of quality of bat material at high school baseball games. Unpublished Doctor's Dissertation. Graduate School of Chung-Ang University.
Choi, S. K. (2015). Magic ball of History : : A war and strategy for the survival of pitchers. Seoul: BRAINstore. pp. 139-142.
Chun, Y. J. & Kim, K. T. (2012). The comparisons of aluminum and wood bats in collegiate baseball games. The Korea Journal of Sports Science, 21(4), 1089-1094.
Chun, Y. J. (2012). The analysis on the changes in beginners batting movements through undergraduate baseball lectures. Korean Journal of Sport Biomechanics, 22(3), 277-284.

원문보기 상세보기
Cole, G. K., Nigg, B. M., Ronsky, J. L. & Yeadon, M. R. (1993). Application of the joint coordinate system to three-dimensional joint attitude and movement representation: a standardization proposal. Journal of Biomechanical Engineering, 115(4A), 344-349.

상세보기
Crisco, J. J., Greenwald, R. M., Blume, J. D. & Penna, L. H. (2002) Batting performance of wood and metal baseball bats. Medicine & Science in Sports & Exercise, 34(10), 1675-1684.

상세보기
Dongascience Eds. (1999) Sport Science. Seoul: Academy books, 164-165.
Escamilla, R. F., Fleisig, G. S., DeRenne, C., Taylor, M. K., Moorman III, C. T., Imamura, R., Barakatt, E. & Andrews, J. R. (2009). A comparison of age level on baseball hitting kinematics. Journal of Applied Biomechanics, 25(3), 210-218.

상세보기
Greenwald, R. M., Penna, L. H. & Crisco, J. J. (2001). Difference in batted ball speed with wood and aluminum baseball bats: A batting cage study. Journal of Applied Biomechanics, 17(3), 241-242.

상세보기
Hubbard, A. W. & Seng, C. N. (1954). Visual movements of batters. Research Quarterly. American Association for Health, Physical Education and Recreation, 25(1), 42-57.
Inkster, B., Murphy, A., Bower, R. & Watsford, M. (2011). Differences in the kinematics of the baseball swing between hitters of varying skill. Journal of Science and Medicine in Sport, 43(6), 1050-1054.
Johnson, N. J. & Giorgis, C. (2006). Books and Baseball America's Favorite Pastimes. BOOK LINKS, 15(4), 13-18.

상세보기
Kim, J. H. (2008). Analysis on Pelvis Variation on Baseball Players in High School and University. Unpublished Doctor's Dissertation. Graduate School of Keimyung University.
Kim, J. T. (1997). A study of upper body joint change in batting of baseball. Gyeongnam Physical Education Research, 2(1), 91-108.
Kim, Y. K. (2013). The Effect of Different Warm-up Procedures on Bat Speed in Baseball. Korean Journal of Sport Biomechanics, 23(2), 91-97.

원문보기 상세보기
Kim, Y. K., Hinrichs, R. N. & Dounskaia, N. (2009). Multicomponent control strategy underlying production of maximal hand velocity during horizontal arm swing. Journal of Neurophysiolgy, 102(5), 2889-2899.

상세보기
Kirkpatrick, P. (1963). Batting the Ball. American Journal of Physics, 31(8), 606-613.

상세보기
Lee, K. R. (2016). A Study on the Changes of High School Baseball through the Oral Communication of the Audience. Unpublished Doctor's Dissertation. Graduate School of Korea University.
Lee, S. K. (2014, May 14). Easily break wood bat, high school baseball talents are also broken. The Dong-A llbo. From http://news.-donga.com/3/all/20140514/63453493/
Lee, W. M. (2015, December 21). 'Wood bat', The main culprit of skill loss of high school baseball. The Sports Chosun. From http://sports.chosun.com/news/ntype.htm?id201512220100219960014706&service date20151221
Lee, Y. S. (2003). The study of batting characteristics in elite baseball players. Korean Journal of Sport Biomechanics, 13(1), 173-184.

원문보기 상세보기
Lim, D. P. (2016). A Study on High School Baseball Players' Satisfaction according to Material of a Bat. Unpublished Doctor's Dissertation. Graduate School of Wonkwang University.
Mcintyre, D. R. & Pfautsch, E. W. (1982). A kinematic analysis of the baseball batting swings involved in opposite-field and same-field hitting. Research Quarterly for Exercise and Sport, 53(3), 206-213.

상세보기
Moon, W. H., Lee, J. S., Kim, C. H., Jang, Y. M. & Jeong, J. W. (2013). Plantar Pressure in Skilled and Unskilled Players during Baseball Batting. Korean Journal of Sport Biomechanics, 23(1), 25-35.

원문보기 상세보기
Race, D. E. (1961). A cinematographic and mechanical analysis of the external movements involved in hitting a baseball effectively. Research Quarterly, 32(3), 394-404.
Sawicki, G. S. & Hubbard, M. (2003). How to hit home runs: Optimum baseball bat swing parameters for maximum range trajectories. American Journal of Physics, 71(11), 1152-1162.

상세보기
Smith, L., Broker, J. E. F. F., & Nathan, A. L. A. N. (2003). A study of softball player swing speed. Sports Dynamics Discovery and Application, 12-17.
Spaniol, F. J., Bonnette, R., Melrose, D. & Bohling, M. (2006). Physiological predictors of bat speed and batted-ball velocity of NCAA Division I baseball players. Journal of Strength & Conditioning Research, 2(4), e25.
Spaniol, F., Paluseo, J., Bonnette, R., Melrose, D., Ocker, L. & Szymanski, D. (2010). The relationship between static strength, rotational strength, rotational power, bat speed, and batted-ball velocity of NCAA Division I baseball players. The Journal of Strength & Conditioning Research, 24, 1.
Szymanski, D. J., McIntyre, J. S., Szymanski, J. M., Bradford, T. J., Schade, R. L., Madsen, N. H. & Pascoe, D. D. (2007). Effect of torso rotational strength on angular hip, angular shoulder, and linear bat velocities of high school baseball players. Journal of Strength & Conditioning Research, 21(4), 1117-1125.
Welch, C. M., Banks, S. A., Cook, F. F. & Draovitch, P. (1995). Hitting a baseball: A biomechanical description. Journal of Orthopaedic & Sports Physical Therapy, 22(5), 193-201.

상세보기
Yoon, W. Y. (2013). Correlation between physical fitness and baseball hitting factor of korea professional baseball player. Kinesiology, 15(1), 23-32.

저자의 다른 논문 :

LOADING...

표제어: PCR

동의어: Packet Collision Rate

용어 설명 출처 목록 (6)

용어 설명: PCR은 세균 특이성이 있는 primer를 이용하여 적은 수의 세균이 있을지라도 쉽게 검출할 수 있는 유용한 방법이며, 이를 이용하여 구강 내 치면세균막이나 타액에서 직접 세균을 검출할 수 있게 되었다[8].

내보내기 구분	파일저장 인쇄 메일전송
구성항목	기본정보 상세정보 관리번호, 논문명, 저널/프로시딩명, 저자 , 발행년, 권, 호, 시작페이지, 끝페이지, 발행기관 관리번호, 논문명, 대등논문명, 저자 , 저널/프로시딩명, 발행기관, 발행년, 발행언어, 권, 호, 시작페이지, 끝페이지, ISBN, ISSN, 주제분야, 키워드, 초록(한글), 초록(영문), 저자(소속기관)
저장형식	Text(ASCII format) Excel format RefWorks Direct Export RIS format (for Reference Manager, ProCite, EndNote), Scholar's Aids, Mendeley
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

연합인증