Abstract
In this study, we investigated the effect of high-intensity interval training（ HIIT） with battle rope（ BR） on kayaksingle 200 m time trial performance. The subject was a kayak sprinter who aimed to win the K1-200 m race at the All-Japan collegiate championship. The HIIT protocol consisted of two sessions and two types of BR exercises（alternative wave and double wave）. Each type of BR exercise was performed 5 times, respectively. The BR exercise consisted of 20 seconds of all-out exercise bouts followed by 30 seconds of rest. The rest time between sessions was 10 minutes. The HIIT protocol was performed 8 times over 4 weeks. The subject completed 200 m time trials 3 times before and after the HIIT. As a result, the subject reduced his time by 2 seconds on the 200 m time trial after HIIT. The blood lactate concentrations on 200 m trials after HIIT were higher than those before HIIT. After HIIT, the distance per stroke （DPS） was increased in the start phase, and the stroke rate （SR） was increased without reduction of DPS in the finish phase. The subject felt that the exercise of swinging down the BR had a positive effect on the strong catch. And the subject won first place at the K1-200m race in the championship
two weeks after HIIT. These results suggest that HIIT with BR positively affects performance in the kayak-single 200 m time trial.
