the effect of bcaas supplement on wrestlers' creatine kinase activity in a three-month depth jump exercise

this study aimed at investigating the effect of bcaas consumption on wrestlers' creatine kinase (ck) activity in a three-month depth jump exercise. for this purpose, 22 male wrestlers from zanjan province (age 21.54±3.52 yr, weight 66.18±3.76 kg, height 168.36±2.41 cm, bmi 23.34±1.97 kg/m2) were randomly selected and divided into two groups. during the mentioned period, both groups had their breakfast at 7:00 am, performed the depth jumps at 9:00 am in six consecutive sets until exhaustion with 5-minute intervals and received their placebo and bcaas by double-blind method after the jumps. group one received 45 mg/kg of body weight of valine, leucine and isoleucine in a 4 ml/kg bw solution. placebo group received 45 mg/kg of body weight of glucose in a 4 ml/kg bw salt and lime solution. blood samples were gathered before (in fasting) and 48 hours after the depth jumps to measure ck activity. one-way analysis of variance and paired t test were used to investigate ck changes at (?=0.05). the results showed no significant difference in ck activity between the two groups (48 hours following the deep jump) in intergroup and intragroup investigations (p