| 근수축 유형에 따근 엘리트 복싱선수의 체급별 근력비교 |
| 오인석 |
| 대한아마추어복싱연맹 |
| Comparison of muscular strength by contraction type in elite boxers of different weight class |
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| ABSTRACT |
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The purpose of this study was to investigate muscular strength by contraction type and association among variables in elite boxers of different weight class. 35 national team boxers classified as light weight group (LWG; n=15), middle weight group (MWG; n=12), and heavy weight group (HWG; n=8) participated in this study. Isometric strength was conducted by grip strength, lower back strength, and arm extensor strength test. Isotonic test was conducted by press and squat through ACE-2000 Multi-Function and isokinetic test of elbow, knee, and trunk was done by Cybex 770. As a result, in isometric test, there were significant differences among three groups in most variables except left arm extensor strength. In isotonic 1RM test, only LWG and MWG, LWG and HWG showed differences in both bench press and squat. In isokinetic strength, there was significant difference in absolute peak torque(Nm) among groups in both side flexor and extensor of elbow, trunk, and knee muscle strength. In addition, relative peak torque and bilateral balance of left leg flexors showed significant differences between LWG and MWG. Significant associations were shown among most of isokinetic absolute peak torque with isotonic and isometric strength except right elbow flexor with left arm strength, left arm extensor with both side arm strength. In bilateral balance, significant negative association was shown between elbow with squat. In ipsilateral balance, significant positive association was shown between leg with bench press and squat. Also, negative association was shown between trunk with right grip strength, left arm extensor strength, bench press, and squat. In conclusion, differences in muscle strength by contraction type among weight classes and associations among strength variables were observed. Therefore, weak part of each weight classes need to be improved. |
| Key words:
elite boxers, contraction type, isotonic, isometric, isokinetic |
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