カヌーにおけるDifferential GPS を用いた艇の移動様相に関する包括的な評価システムの構築

抄録

　The purpose of this study was to develop the comprehensive evaluation system of performance in canoe sprint using the Differential Global Positioning System (DGPS). As the first step, we compared the stroke variables during 500 meters time-trial using the DGPS to the video tape recorder (VTR). The participants were ten collegiate athletes, completing 500 meters sprint at their maximum effort. The DGPS was placed on the boat, and the moving speed was calculated by the recorded location information (i.e., latitude and longitudinal). Then, we calculated the stroke variables by analyzing the pattern of the acceleration and deceleration in every stroke.

　As a result, the number of strokes using DGPS and VTR were consistent. In addition, DGPS consists of other functions that VTR does not have, such as measuring the consistency of each paddling speed, the pattern of the acceleration and deceleration in every stroke, and the course stability that might be additional evaluation indicators of one’s paddling skills and/or techniques. In turn, athletes and coaches may receive more specific information related to performance by using GPS. Thus, the result suggested that GPS could be a useful and practical tool for evaluating performance in canoe sprint.