| Keywords |
Taekwondo ; Radial artery pulse wave ; Cardiovascular condition |
| Abstract |
The systolic augmentation index (AIx) can be obtained from the central arteries and peripheral arteries. It has been proven that the AIx in the central arteries, including the aorta and carotid arteries, changes with age. The investigation to find possible usage of AIx from radial artery as an index for vascular aging was done. Radial pulse wave were obtained from 52 subjects(26 taekwondo athletes age 20.83±0.20 yrs, height 178.31±0.88 cm, weight 70.98±1.59 kg, BMI 22.29±0.40 kg/m2, 26 control age 21.07±0.34 yrs, height 174.79±0.98 cm, weight 68.71±1.87 kg, BMI 22.42±0.48 kg/m2) with no cardiovascular disease, using radial tonometry. Heart rate(HR) was significantly lower in taekwondo athletes than in control(athletes 65.02±0.82 beat/min, control 71.81±0.80 beat/min, p<.000). The value of main peak(h1) was significantly higher in taekwondo athletes than in control(athletes 192.90±3.86mmHg, control 173.45±3.22 mmHg, p<.000). The value of contract incident duration ratio(t1/t) was significantly lower in taekwondo athletes than in control(athletes 0.12±0.00, control 0.13±0.01, p<.000). The value of systolic duration ratio(t4/t) was significantly lower in taekwondo athletes than in control(athletes 0.33±0.00, control 0.35±0.00, p<.000). The value of high pressure duration ratio(w/t) was significantly lower in taekwondo athletes than in control(athletes 0.098±0.00, control 0.104±0.00, p<.05). AIx had no difference between 2 groups(athletes 49.68±1.07, control 50.27±16.45, p>.05). These findings indicate that the effect of taekwondo training had positive effects on radial pulse wave. |