تأثير تناول مشروب الطاقة على زمن سباق 25 م سباحة حرة و بعض هرمونات الطاقة عند طلبة مساق السباحة في جامعة اليرموك

الملخص EN

This study examined the effect of energy drink on time of swimming race and some of energy hormones in students' course swimming at yarmouk university.

Using a time-performance trial-design via experimental approach, 10 students (21.70±1.57 year) participated in tow trials (one week apart).

Each student performed 25 m swimming race following ingested 1 can of POWER HOURS (330 ml) per day for 5 days followed by one can prior to race (energy drink trial) or control trial.

The time race was recorded and blood samples were collected immediately after each trial.

The results showed that the time of race was significantly shorter in energy drink trial than control trial (23.166 sec; 24.176 sec, respectively) (p < 0.05).

Lactate dehydrogenase concentration and blood glucose level were significantly higher in energy drink trial compared with control trial.

No significantly differences in cortisol, insulin, and testosterone hormones between the trials.

In conclusion, intake of POWER HOURS (330 ml) for 5 days enhances physical performance via increased glycogen muscle.