[PURPOSE] The purpose of this study was to analyze rearfoot control and impact force absorption variables with increments of running velocity, and provide essential data to enhance evaluation of sports shoes. [METHODS] Subjects in this study were ten healthy college students with normal foot function and without lower extremity injuries in the past year. Experimental shoes were shoes with a 50 of midsole hardness and 0.74 N/mm of bending stiffness. Motions of lower extremity at 3 different running velocities were analyzed through 3D cinematography and force platform. [RESULTS] Initial Achilles tendon angle, Initial 1/10 Achilles tendon angle, Maximal Achilles tendon angle were found to be larger than those reported in previous studies, but initial pronation was smaller while total pronation, compressive angle, torsion angle were similar. Most of the rearfoot angle and impact force absorption variables increased with increments of running velocity in comparisons with the previous studies. [CONCLUSIONS] These results indicate that some of the variables were extremely sensitive to running velocity while some were sensitive in a smaller range, and the other were not influenced by different running velocities. So, it is very important to control the running velocity if results should be compared for different shoes. The present study suggest that proper running velocity for shoe evaluation should be within 4㎧.
본회는 인체의 운동에 관련된 연구 활동을 통하여 운동학의 학문적 체계를 정립하고 운동을 통하여 인간의 건강과 행복을 추구하는데 필요한 실용적 지식과 기술을 개발, 보급함을 목적으로 한다.
본회는 위의 목적을 달성하기 위하여 다음과 같은 사업을 수행한다.
1. 운동의 본질과 운동참여율제고를 위한 철학적, 역사적, 기술적, 실험적, 창의적 연구
2. 운동 시설ㆍ프로그램의 개발, 보급 관련 연구
3. 운동사 양성 및 배치 방안에 관한 정책 개발
4. 전문서적 간행
5. 학술지 발행 및 배포
6. 학술정보 수집 및 교류, 보급
7. 관련 시설 및 기관, 단체에 대한 자문, 건의, 협조
8. 기타 본 회 목적 달성에 필요한 사업