تأثير تناول الكافيين و الكربوهيدرات على مسافة الجري خلال اختبار كوبر بعد التمرين-المسبب جفافا و بعض المتغيرات البيوكيميائية عند لاعبي التحمل

الملخص EN

The aim of the present study was to investigate the effect of caffeine and carbohydrates to run a distance through the cooper test after exercise–induced dehydration and some biochemical variables when players endurance.

using a random blind-design, 8 athletes (20.75 years ± 1.98) participated in two trials (14 days apart).

athletes performed 105 minutes on the treadmill (5 sessions of 15 min running by 5 min rest between each session with differences speeds).

after 10 min rest, each player ingest 7 g carbohydrates + caffeine dissolved in 250 ml water (supplement trial) or placebo trial before commencement of cooper test.

running distance was recorded and blood and urine samples were collected immediately after the cooper test to measure the biochemical parameters.

the results showed that running distance was significantly higher in supplement trial (3470 M) than placebo trial (3230 M) (P < 0.05).

thyroxine was significantly higher in placebo trial, blood calcium level and blood sugar level were significantly higher in supplement trial the (p < 0.05).

however, there are no statistical difference in blood sodium and urine gravity between both trials.

it was concluded that 7 g of carbohydrates and caffeine dissolved in 250 ml water enhanced performance during cooper test after exercise induced dehydration via increment of energy storage and some biochemical parameters.