| Keywords |
Inflatable Kayak ; Exercise Performance ; Blood Fatigue Material ; Stress Hormone |
| Abstract |
The purpose of this study was to investigate the differences exercise performance, blood fatigue materials, and cortisol of paddlers during domestic-made inflatable kayak(A-boat and B-boat) and foreign-made inflatable kayak(Cboat) sailing. Ten elite high school kayak players (16.20±1.54 yr, 173.30±5.67 cm, 65.10±5.83 kg) were recruited in this study. Forward stroke frequence, the lead time, and tri-axis physical activity levels as indices of exercise performance were measured and analyzed. Also, blood lactate, ammonia, phosphorous, and cortisol were analyzed to compare blood fatigue level and stress hormone. A-boat was significantly different to C-boat on the forward stroke frequence(p=.011) and the tri-axi physical activity levels(p=.017). There were no significant differences among the boats on blood fatigue materials and cortisol. However, A-boat showed lower blood fatigue trend than C-boat. These results suggest that A-boat had better straightness and stability than C-boat. |