중량부하 달리기 시 하지부상 예방을 위한 운동역학적 분석

Abstract

The purpose of this study was to analyze the changes in kinematic and kinetic parameters and to find biomechanical benefits of running with and without sandbags around both ankles. The subjects were nine healthy males (age: 22.78±2.22 years old, height: 177.34 ± 3.75cm, weight: 72.52 ± 7.61kg). The subjects ran at the speed of 2.0m/s and 3.0m/s with and without sandbags around their ankles. The data were collected by using VICON with 8 cameras to analyze kinematic variables with 200Hz and force platform to analyze kinetic variables with 2000Hz. The results of this study were as follows. First, when speed in creased the range of motion increased at the ankle joint and hip joint without the sandbags. With the sandbags the range of motion increased at the knee joint at both speed, and the range of motion at the hip joint increased only when running 3m/s. Second, the moment of lower limb joint increased and the size of plantar flexion of the ankle and flexion moment of the knee and hip joint increased with and without sandbags with speed. The plantar flexion of the ankle increased when running 2m/s with the sandbags. The flexion moment of the knee increase d when running 3m/s. Third, the absorption power of ankles, knees, and hip joint increased with speed increase and the absorption power of the knee joint increased at 2m/s and 3m/s with the sandbags. Forth, the generation power of the ankles, knees, and hip joint increased with speed with and without sandbags. The generation power increased at all joints with the sandbag and when running 3m/s.