Effect of Oral Intake of L-Carnitine and L-Arginine Supplements on Growth Hormone and Dopamine Level in Sportsmen Pre- and Post-Exercise

The present study was conducted to study the effect of L-carnitine and Larginine supplements on GH and Dopamine level pre- and pose-exercise in Sportsmen, the groups were divided in five groups ( 1st group control, 2nd group received L-carnitine 1000 mg daily for 14 days, 3rd group received L-arginine 1000 mg daily for 14 days, 4th group received L-carnitine 1000 mg every other day for 14 days, 5th group received Larginine 1000 mg other day for 14 days). Lcarnitine induced a high significant (P<0.05) increase in serum Growth hormone in pre- exercise and post and L-arginine induced a high significant (P<0.01) increase in serum Growth hormone in pre- exercise and post.
For the Dopamine the L-carnitine a high significant (P<0.01) increase in serum pre-exercise and a high significant (P<0.01) decrease post-exercise , while in L-arginine asignificant decrease (p≤0.01) of dopamine concentration in serum in pre- and post exercise. L-carnitine and L-arginine determined to increase an improving and enhancement of
male growth.