大学ラグビー選手におけるパントキック技術の指導方法に関する研究

抄録

The purpose of this study was to examine the effects of a training program employing differential learning, based on biomechanical data from previous research. Seven male college rugby players (age: 19.9±1.3 years; height: 1.70±0.04 m; weight: 77.9±8.2 kg) participated. The training program consisted of 36 punt kicks targeting three distances (35 m, 50 m, and maximum distance) and incorporated variations in approach angle (straight, diagonal), approach velocity (fast, slow), and motion variations (smaller or larger last steps, Vertical jumping on the support foot). Pre and post training performance tests involved punt kicks to targets (tackle bag) set 35 m and 50 m from the try line, as well as maximum distance punts. Three-dimensional coordinates data were collected using a motion capture system (11 cameras, 250 Hz). Post-training, swing speed during maximum kicks slightly decreased (pre: 19.3±0.8 m/s; post: 19.0±0.6 m/s), while ball velocity increased (pre: 24.9±1.3 m/s; post: 26.0±2.2 m/s). A subset of participants (2 out of 7) showed a decrease in the distance between the ball landing point and the target for the 35 m and 50 m kicks. These findings indicate that differential learning-based training can improve punt kicking performance by increasing ball velocity and kicking accuracy. However, further investigation is needed to develop training programs that can also increase swing speed.