INFLUENCE OF CEREBRAL LATERALIZATION ON SHOOTING ACCURACY PERFORMANCE OF FIELD HOCKEY PLAYERS

The aim of this study is to examine the effect of cerebral lateralization on drag-flick and shot performance in hockey. For this purpose, 35 elite hockey players participated in the study as subjects. After the lateralization test was applied, the subjects were divided into three groups as dominant right hand, dominant left hand and using both hands, and then shot and drag flick tests were applied to the subjects to determine the effect of lateralization on hockey skills between the groups. The obtained data were analyzed in SPSS 22.0 program. After testing for normality and homogeneity, one-way analysis of variance and LSD correction were performed for multiple groups. When the results were examined, it was determined that hand preference had a significant effect on shooting performance and drag flick performance in favor of right and left hand dominant (p<0.05). As a result, it can be said that the effects of laterization are in favor of the dominant hand in hockey players regardless of whether they are right or left, and individuals using both hands perform negatively in hitting advantageous points.  Article visualizations

AN INVESTIGATION OF KNEE ISOKINETIC TIME TO PEAK TORQUE AND JOINT ANGLE AT PEAK TORQUE: DIFFERENT BODY POSITION EFFECT

The purpose of study was to investigate the effects of isokinetic knee measurement with different positions (prone and sitting) on knee isokinetic time to peak torque and joint angle at peak torque. For this purpose, 15 health sedentary male participated in the study. Isokinetic measurements were performed with isokinetic dynamometer (CSMI Cybex Humac Norm, USA). Isokinetic tests were performed at 3 different motion angles (60os-1 / 180os-1 / 240os-1). The test was carried out with 10 repetitions at 240os-1and 180os-1 and 5 repetitions at 60os-1. Each movement angle was performed 45 second rest intervals. SPSS 20.0 package program was used for the analysis of the data. Significance level was accepted as p < 0.05. According to the result of the analysis significant differences were found for 240°s-1 on joint angle at peak torque extension parameter in favor of prone position; for 180os-1 on time to peak torque extension and flexion parameter in favor of the prone position; for 60°s-1, on joint angle at peak torque parameter in favor of the sitting position, on time to peak torque extension and time to peak torque flexion parameter in favor of the prone position (p < 0.05). As a result, it can be said that different positions have significant effects on the time to peak torque and joint angle at peak torque in isokinetic knee measurement. Article visualizations

EFFECT OF CORE EXERCISES ON BALANCE AND VERTICAL JUMP OF 12-14 AGED FEMALE VOLLEYBALL PLAYERS

The aim of this study is to investigate the effect of the 8-weeks core training program on balance and vertical jump in female volleyball players. 24 female volleyball players aged 12-14 (12 in experimental group, 12 in control group) voluntarily participated in the study. While the core training program and routine volleyball training was applied to the experimental group for 8 weeks, 3 days in a week/ 60 minutes per day, only routine volleyball training was applied to the control group for 8 weeks. Balance and vertical jump tests were applied to the subjects before (pre-test) and after (post-test) 8 weeks core training program. Paired and Independent Samples t Tests on SPSS 22.0 program were used for statistical analysis. There was a significant difference between the pre-test and the post-test in terms of balance and vertical jump values of the experimental group (p &lt;0.05). While there was no statistically significant difference between the pre-test and post-test of the control group in non-blind standing stork test (p&gt; 0.05), there was significant difference in blind stork test and vertical jump tests (p &lt;0.05). When the change between the groups was examined by looking at the difference of the pre-posttests, non-blind stork test was 3.73 cm, blind stork test was 2.45 cm and vertical jump test was 2.50 cm. After 8 weeks of core training, a significant difference was found between the two groups’ balance and vertical jump values (p &lt;0.05). As a result, it could be said that the core training program has positive effects on balance and vertical jump when applied with volleyball training.  Article visualizations

CHRONIC EFFECT OF INSPIRATORY MUSCLE TRAINING TO MAXIMAL EXPIRATORY PRESSURE IN SEDENTARY HEALTHY BOYS

The aim of this study was to investigate the effect of inspiratory muscle training on maximal expiratory pressure (MEP) in healthy sedentary boys. For this purpose, 20 healthy sedentary boys aged 12 years were randomly assigned to two groups as inspiratory muscle training group (IMT, n = 10) and control group (CG, n = 10) who did not perform any training. 30x2 breath exercises were performed as inspiratory muscle training for 4 weeks and 3 days a week for 40% maximal inspiratory pressure (MIP). The MEP test was applied to all subjects 1 day before and after 4 weeks. The data were analyzed in SPSS 22.0 program. The mean of the percentage change with 2x2 mixed factor ANOVA and LSD correction tests were investigated with Mann Whitney U test. As a result of the statistical analysis, a significant difference was found between the IMT pre-and post-test results at the MEP value (p &lt;0.05). In addition, it was observed that IMT showed a significant increase when compared to CG (p &lt;0.05). In conclusion, it can be said that inspiratory muscle training affects the maximal expiratory pressure positively in healthy sedentary boys.  Article visualizations

CHRONIC EFFECT OF CORE STABILIZATION TRAINING FIELD HOCKEY DRAG-FLICK AND SHOOTING PERFORMANCE

The aim of this study is to examine the effect of core stabilization training on drag-flick and shot performance in young hockey players. For this purpose, 20 super league level hockey players participated in the study as subjects. The subjects were divided into two equal groups as experimental and control. While core training and hockey training were applied together for 8 weeks to the experimental group; the control group only continued their routine hockey training. Shot and drag flick tests were applied to the groups one day before and one day after the 8-week period. The obtained data were analyzed in SPSS 22.0 program. After testing for normality and homogeneity, independent samples t-test was performed for between groups, and paired samples t-test was performed for pre-post-tests of each group. When the results were examined, there were significant changes in the hit and drag flick parameters in favor of the post-tests between the pre-post tests in the experimental group in which core training was applied (p&lt;0.05), while the significant changes in the control group were not evaluated because they were in favor of the pre test. Despite these results, there was no significant difference in the measured features between the groups (p&gt;0.05) As a result, it can be said that core training has positive effects on drag flick and shot performance in hockey players.  Article visualizations

CHRONIC EFFECT OF DYNAMIC AND STATIC CORE TRAINING ON TAEKWONDO BANDAL-TCHAGUI KICK FATIGUE

In our study, the effect of dynamic and static core training on taekwondo Bandal-Tchagui kick fatigue was investigated. For this purpose, 21 athletes participated in the study and they were divided into two as dynamic and static core groups. Both groups participated in the core training program for 6 weeks and fatigue was determined by measuring the kick impact pressure one day before and after the program. As a result of the data obtained, it was observed that fatigue was not affected both between the pre-post tests of the groups and between the groups (p>0.05). As a result, it can be said that dynamic and static core training has no effect on taekwondo Bandal-Tchagui kick fatigue. Article visualizations

INFLUENCE OF INSPIRATORY MUSCLE WARM-UP EXERCISE ON FIELD HOCKEY DRAG-FLICK AND SHOOTING PERFORMANCE

The aim of this study is to examine the effect of inspiratory muscle exercise on drag-flick and shooting performance in hockey. For this purpose, 30 individuals engaged in hockey sports participated in the study as an experimental group. The subjects were applied three inspiratory muscle warm-up exercises (maximal inspiratory pressure, MIP): at 5% intensity (placebo) and 40% intensity (RWU), with 30 breaths x 2 sets and 1 minute rest between sets, first without warming up. After each test, 20 shots drag-flick and 20 shots were performed at the hockey goal, whose scoring was prepared before. The data obtained were analyzed in SPSS 22.0 program. After testing for normality and homogeneity, one-way analysis of variance and LSD correction were performed for repeated measurements. According to the one-way analysis of variance test in repeated measurements; in the drag-flick performance test, a significant difference in favor of the RWU application was observed between the RWU application and placebo and no warming applications (

THE EFFECT OF 4-WEEK TWO DIFFERENT STRENGTH TRAINING PROGRAMS ON BODY COMPOSITION

The purpose of the study was to investigate the effect of the four-week two strength training program on the skin fold thickness and body fat percentage (BFP) characteristics according to the maximal strength and strength endurance principles. Sixteen male volunteers participated in the study. The subjects were divided into two groups as the maximal strength group (MSG, n=8, Age=24.00±3.78 year, Height=172.25±2.19 cm, Weight=75.13±6.60 kg) and the strength endurance group (SEG, n=8, Age=25.13±3.09 year, Height=173.38±2.62 cm, Weight=77.00±7.54 kg). 4 weeks training program was applied to maximal strength group according to maximal strength training principles and applied to strength endurance group according to strength endurance training principles. In both groups, body weight, body mass index (BMI), skin fold thickness (triceps, biceps, pectoral, subscapula, abdominal, suprailiac, femur anterior and posterior, calf) and body fat percentage measurements were taken one day before and after the 4 week period. Between pre-test and post-test of SEG group, significant change was showed in triceps, biceps, pectoral, subscapula, abdominal, suprailiac, femur anterior and posterior skin fold thickness measurements and VFM parameters (p &lt; 0.05). Significant change was determined in pre-test and post-test of MSG group in triceps, pectoral, subscapula, abdominal, suprailiac, femur anterior skin fold thickness measurements and VFM parameters (p &lt; 0.05). When the pre-post test differences of the groups were compared, no difference was found between MSG and SEG groups (p &gt; 0.05). As a result, it can be said that 4-week maximal strength training and strength endurance training have positive effects on the skin fold thickness and body fat percentage parameters.  Article visualizations

ACUTE EFFECT OF INSPIRATORY MUSCLE WARM-UP PROTOCOL ON KNEE FLEXION-EXTENSION ISOKINETIC STRENGTH

In this study, it was planned to investigate the acute effect of inspiratory muscle warm-up protocol on knee flexion-extension isokinetic strength. In our study, control and two different experimental applications were performed on sedentary individuals (n: 15, age: 22.25 ± 1.49 years). In the control application, the subjects participated in the 60os-1 180os-1 and 240os-1 knee flexion-extension isokinetic test, respectively, without general warm-up. Isokinetic tests performed after general warm-up in one of the experimental trials. In the other experimental trial, in addition to general warming, the same isokinetic tests were performed after performing 30 breaths of respiratory muscle twice at 40% maximal inspiratory pressure intensity. One-way analysis of variance and LSD tests were performed for repeated measurements to determine the difference between trials. There were significant differences in 60o PT H / Q Ratio, 60o WH / Q Ratio, 60o PTEx, 60o WEx, 60o PTFlx, 60o FIFlx and 60o WFlx 180o PT H / Q Ratio (%), 180o PTEx (nm), 180o APEx (watts), 180o PTFlx (nm), 180o FIFlx (nm), 180o WFlx (nm / repeat) 240o PTEx (nm), 240o WEx (nm / repeat), 240o PTFlx (nm), 240o FIFlx (nm) and 240o WFlx (nm / repeat) parameters in favor of experimental applications (p &lt;0.05). There was no significant difference between applications in other parameters measured (p&gt; 0.05). As a result, it can be said that inspiratory muscle warm-up exercise lowers the fatigue index and therefore increases the peak torque, average power and total workforce, and it affects the knee flexion-exudate isokinetic strength acutely.  Article visualizations

THE EFFECT OF 4-WEEKLY LOW INTENSITY PHYSICAL ACTIVITY PROGRAM IN THYROID HORMONE LEVELS IN OBESE AND OVERWEIGHT CHILDREN

The aim of this study is to examine the effect of 4 weeks of low intensity physical activity program on thyroid hormone levels in obese and overweight boys. A total of 27 boys in the 12-14 age range; obese group 12 and overweight group 15 were divided into two groups. Children who participated in the study during the 4 weeks 3 days a week, games and sporting selected time period of 60 minutes a day walking program applied increasingly. TSH, T3 and T4 levels were determined in blood samples taken at rest 1 day before and one day after the 4 week training program. In the statistical analysis of the data obtained in the study, SPSS package program SPSS 22.0 statistical program (SPSS Inc., Chicago, Illinois, ABD)  was used. Paired Samples T tests were used to analyze the difference between the Independent Samples T and the pre-test and post-test of the groups in the comparison of the binary groups. At the end of the study, body weight and T3 values of obese subjects (n = 12) and body weight, BMI and T3 values of overweight group were found to be significantly different between pre-test and post-test (p &lt;0.05). In the analysis of pre-test and post-test differences of measured characteristics of obese and overweight subjects, no significant difference was found (p&gt;0,05). As a result; of obese and overweight boys in the 12-14 age range in the 4-week low intensity physical activity program it can be said to cause changes in thyroid hormone levels.  Article visualizations