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SUMMARY The purpose of this study was to determine the effects of L-Carnitine on 1500m running pe... more SUMMARY The purpose of this study was to determine the effects of L-Carnitine on 1500m running performance and blood lactate level. Healthy and well-trained 20 voluntary male athletes were randomly classified in two groups as the control (n=10) and study (n=10) groups. Before the treatment performance times of the athletes for running 1500 m recorded and the blood samples were obtained four minutes after the exercise. Athletes in the study group were treated with 1 x 2 g of L-Carnitine per day after the lunch for 10 days, while the control group had only fruit juice. Then performance time recording and blood taking were repeated to see the effects of L-Carnitine. The results of the control group showed no statistical significance. But in the study group both performance times and plasma lactate levels significantly reduced (p<0.001). In this study, 10 days L-Carnitine supplementation has provided an ergogenic benefit on blood lactate level and 1500m running performance on well-tr...

ABSTRACT The purpose of the study is to analyse the fitness and the biomechanical factors which d... more ABSTRACT The purpose of the study is to analyse the fitness and the biomechanical factors which determine the velocity of the ball during serve in tennis (VBTS). The subjects of the study were fifteen male tournament level tennis player between the ages of sixteen and twenty five (18,8 ± 2,70 age/year). The physical fitness measurement of the study were; length, body weight, skinfold, diameter, circumference and length of the body, body composition, isometric handgrip strength, vertical jump, upper extremity range of motion (ROM) and isokinetic strength. The angular velocity of racket head, racket handhold, middle finger, wrist, elbow, shoulder and hip joints on three axis during serve shoot were used for the biomechanical measurement. The relationship between VBTS with physical fitness and biomechanical factors were measured with Pearson Correlation.The analysis showed that there was significant positive relation between VBTS and length, negative relation with mesomorphy; positive relation between ROM of shoulder dominant internal and external rotation, trunk hyper-extension, left lateral flexion and right rotation, negative relation in dominant wrist flexion, positive relation between isokinetic strength characteristics such as shoulder and elbow extension, shoulder internal and external rotation, wrist flexion, handgrip isometric strength, also in biomechanical measures, positive relation between in Y axis elbow, wrist, finger and head of the racket.As a result, fitness and biomechanical parameters that are intensively used in tennis determine VBTS. We think trainers may speed up VBTS by improved parameters and accelerated training programmes.

SUMMARY The purpose of this study was to determine the effects of L-Carnitine on 1500m running pe... more SUMMARY The purpose of this study was to determine the effects of L-Carnitine on 1500m running performance and blood lactate level. Healthy and well-trained 20 voluntary male athletes were randomly classified in two groups as the control (n=10) and study (n=10) groups. Before the treatment performance times of the athletes for running 1500 m recorded and the blood samples were obtained four minutes after the exercise. Athletes in the study group were treated with 1 x 2 g of L-Carnitine per day after the lunch for 10 days, while the control group had only fruit juice. Then performance time recording and blood taking were repeated to see the effects of L-Carnitine. The results of the control group showed no statistical significance. But in the study group both performance times and plasma lactate levels significantly reduced (p<0.001). In this study, 10 days L-Carnitine supplementation has provided an ergogenic benefit on blood lactate level and 1500m running performance on well-tr...

ABSTRACT The purpose of the study is to analyse the fitness and the biomechanical factors which d... more ABSTRACT The purpose of the study is to analyse the fitness and the biomechanical factors which determine the velocity of the ball during serve in tennis (VBTS). The subjects of the study were fifteen male tournament level tennis player between the ages of sixteen and twenty five (18,8 ± 2,70 age/year). The physical fitness measurement of the study were; length, body weight, skinfold, diameter, circumference and length of the body, body composition, isometric handgrip strength, vertical jump, upper extremity range of motion (ROM) and isokinetic strength. The angular velocity of racket head, racket handhold, middle finger, wrist, elbow, shoulder and hip joints on three axis during serve shoot were used for the biomechanical measurement. The relationship between VBTS with physical fitness and biomechanical factors were measured with Pearson Correlation.The analysis showed that there was significant positive relation between VBTS and length, negative relation with mesomorphy; positive relation between ROM of shoulder dominant internal and external rotation, trunk hyper-extension, left lateral flexion and right rotation, negative relation in dominant wrist flexion, positive relation between isokinetic strength characteristics such as shoulder and elbow extension, shoulder internal and external rotation, wrist flexion, handgrip isometric strength, also in biomechanical measures, positive relation between in Y axis elbow, wrist, finger and head of the racket.As a result, fitness and biomechanical parameters that are intensively used in tennis determine VBTS. We think trainers may speed up VBTS by improved parameters and accelerated training programmes.