This study was conducted to investigate the effect of core exercise program on vertical jump, speed, agility and strength parameters in junior male soccer players. In the study, pretest-posttest control group design, one of the experimental models of quantitative research method, was used. The experimental group of the study consisted of 12 male soccer players (X̄year: 12,16±,83) who underwent core exercise 3 days a week for six weeks in addition to regular soccer training, while the control group of the study consisted of 12 male athletes (X̄year: 12,25±,62) who underwent only regular soccer training. Leg strength, core strength, vertical jump, 30 m sprint and agility tests were administered to the athletes who voluntarily participated in the study before and after six weeks of training. The normality level of the data was determined by Shapiro-Wilk test. Independent Sample T Test for independent groups and Paired Sample T Test for dependent groups were used to analyze the normally distributed data. According to the findings of the study, there was a statistically significant difference between the pre-test - post-test measurement values of all performance tests of the experimental group and core strength, vertical jump, 30 m sprint and agility tests of the experimental and control groups (p0.05), while no significant difference was found in the control group (p0.05). According to the results of the study, it can be said that the core exercise program applied to male football players has positive effects on the development of vertical jump, speed, agility and strength parameters.Keywords: Core exercise, Football, Jumping, Speed, Strength

Background and Study Aim. This study aimed to determine the relationship between body composition and biomotor performance parameters in male football players under 18 years of age (U18). Material and Methods. Eighteen male football players who play in the U18 category in the local football league in Muş province, Turkey voluntarily participated in this research. The players underwent body analysis measurements and performed the following tests: 10-m and 20-m sprints, T agility, vertical jump, and the Yo-Yo intermittent recovery test (level 1). The SPSS package program was used for relational and descriptive analysis of the data. The Pearson correlation test was performed to determine relationships between variables in normally distributed data, while the Spearman correlation test was used for non-normally distributed data. Results. A weak negative correlation was observed between the 20-m sprint test and fluid (liquid) mass (r=-.448; p=.047). There was a weak positive correlation between vertical jump heights and lean mass (r=.475; p=.034), muscle mass (r=.475; p=.034), and basal metabolic rate (r=.461; p=.041), while vertical jump and fluid mass (r=.574; p=.008) exhibited a moderate positive correlation. A weak positive correlation was found between the 10-m sprint test and visceral fat (r=.489; p=.029). No significant association existed between the T agility and Yo-Yo tests and body composition parameters (p>.05). Conclusions. Higher levels of lean mass, muscle mass, fluid mass, and basal metabolic rates correlated with improved vertical jump performances. As the fluid mass of the participants increased, their 20-m sprint times also increased; a similar relationship was observed between visceral fat proportions and 10-m sprint times. In order to improve the physical performances of football players, we propose inhibiting the accumulation of body fat while increasing fluid and muscle levels.

Background and Study Aim. Body composition, anaerobic power, and jumping performance are important factors for athletic performance. This study aimed to determine the relationship between body composition parameters and anaerobic power and jumping performance in basketball players. Material and Methods. Twelve male university students specializing in basketball (age: 20.83±2.21 years) participated voluntarily in the study. Body composition measurements and Wingate anaerobic power and countermovement jump (CMJ) tests were applied to the participants. This study was designed as a cross-sectional correlational study. The SPSS package program was used for statistical analysis of the data. The Shapiro-Wilk test was applied to assess the normality of the data. The data were found to follow a normal distribution. The Pearson correlation test was used to analyze relationships within the data. Results. According to the correlation test results, significant positive relationships were found between fat-free proportion and CMJ, peak power, mean power, and minimum power, while a significant negative relationship was found with the fatigue index. Significant positive relationships were also found between muscle proportion and CMJ, peak power, mean power, and minimum power, whereas a significant negative relationship was observed with the fatigue index. Similarly, significant negative relationships were found between fat proportion and CMJ, peak power, mean power, and minimum power, while a significant positive relationship was observed with the fatigue index. Significant positive relationships were identified between fluid proportion and CMJ, peak power, mean power, and minimum power. Significant negative relationships were found between basal metabolic rate (BMR) and peak power and minimum power, whereas a significant positive relationship was observed with the fatigue index. Lastly, significant negative relationships were found between visceral fat proportion and peak power, mean power, and minimum power, while a significant positive relationship was observed with the fatigue index. Conclusions. High fat mass negatively affects anaerobic power and jump performance, whereas higher muscle and fluid proportions improve performance. Strength training to increase lean body mass, maintaining fluid-electrolyte balance, and following a balanced nutrition program can positively impact athletic performance.

This study was conducted to determine the effect of four weeks of high intensity interval training on blood oxygen saturation, body composition and some performance parameters in young male football players. Pre-test-post-test control group experimental method was used in the study. Twelve experimental (age: 16,33,77 years; height: 171,50,6,23 cm; body weight: 58,33,5,19 kg) and 12 control (age: 16,50,52 years; height: 168,58,5,68 cm; body weight: 58,05,4,60 kg) male football players aged 15-17 years, who regularly exercise and have been playing football for at least 3 years participated in the study. In the study, the experimental group performed high intensity interval training 3 days a week in addition to football training for 4 weeks. The control group only performed routine football training. In the study, height and body weight, resting heart rate, systolic and diastolic blood pressure, blood oxygen saturation, body composition, 20 m sprint test, Illinois agility test and Yo-Yo interval running test were applied as pre and post tests. The normality level of the data was determined by Shapiro-Wilk test. Independent Sample T Test for independent groups and Paired Sample T Test for dependent groups were used to analyse the normally distributed data. According to the findings of the study, while statistical significance was determined in blood oxygen saturation, body composition, Illinois agility test and Yo-Yo interval running parameters of the experimental group (p0.05). According to the results of the study, it can be said that 4-week high intensity interval training has positive effects on blood oxygen saturation, body composition and performance parameters in young male football players.

Background and Study Aim. Core training has gained prominence as a crucial component in improving athletic performance, particularly in sports that demand high levels of coordination, balance, and explosive power. Badminton, which requires rapid directional changes, agility, and lower-body strength, may particularly benefit from such training methods. The aim of this study is to determine the effects of a four-week core training program on speed, agility, strength and jumping performance in 10 to 12 year old female badminton players. Material and Methods. This study was designed as a pre-test–post-test control group experimental research using quantitative methods. Twenty-two female badminton athletes who participated voluntarily were randomly divided into an experimental group (n = 11) and a control group (n = 11). The experimental group performed a core training program twice a week for four weeks in addition to regular badminton training. The control group performed only regular badminton training during this period. Sprint tests (10 m and 20 m), T agility test, leg strength, hand grip strength, and countermovement jump (CMJ) tests were administered to all participants before and after the training period. The normality of the data was assessed using the Shapiro–Wilk test. Data with normal distribution were analyzed using repeated measures analysis of variance (ANOVA). Results. According to the findings, there were no significant differences between the pre-test values of the groups (p > 0.05). Over time, significant improvements were observed in the T agility test (p = .047; ηp² = .18) and the CMJ test (p = .024; ηp² = .23). Both results indicated large effect sizes. No significant differences were observed in the 10 m and 20 m sprint, leg strength, or hand grip strength tests (p > 0.05). Regarding the interaction between time and group, significant differences were again found in the T agility test (p = .045; ηp² = .19) and the CMJ test (p = .014; ηp² = .26), both indicating large effect sizes. No significant time × group interactions were found for sprint, leg strength, or hand grip strength variables (p > 0.05). Conclusions. The four-week core training program applied to youth female badminton players had positive effects on agility and jumping performance. Based on these results, incorporating core training into the routine practice of youth athletes is recommended to enhance agility and explosive power in sports that require rapid directional changes.

Bu araştırmanın amacı, erkek futsalcılarda sekiz haftalık tekrarlı sprint egzersizinin kan laktat düzeyi, sürat, dikey sıçrama ve alt ekstremite kuvvet gelişimine etkisinin belirlenmesidir. Araştırmada nicel araştırma yöntemi deneysel modellerinden ön test-son test kontrol gruplu desen kullanılmıştır. Araştırmanın deney grubunu, düzenli futsal antrenmanın yanı sıra sekiz hafta boyunca haftada 3 gün tekrarlı sprint egzersizi uygulanan Muş Alparslan Üniversitesi futsal takımındaki 12 erkek futsalcı (X̄ yaş:21,42±1,31) oluştururken, araştırmanın kontrol grubunu, yalnızca düzenli futsal antrenmanı uygulanan Spor Bilimleri Fakültesi’nde öğrenim gören 12 erkek sporcu (X̄ yaş:21,08±1,00) oluşturmuştur. Araştırmaya gönüllü olarak katılan sporculara, antrenmanlar öncesi ve sekiz haftalık antrenmanlar sonunda kan laktat, 10-20 m sürat, dikey sıçrama ve bacak kuvveti testleri uygulanmıştır. Verilerin normallik düzeyi Shapiro- Wilk testi ile belirlenmiştir. Normal dağılım gösteren verilerin analizinde bağımsız gruplar için Independent Sample T Testi ve bağımlı gruplar için Paired Sample T Testi kullanılmıştır. Araştırma bulgularına göre deney grubunda dinlenik laktat ve egzersiz sonrası laktat düzeylerinde anlamlı bir fark bulunmazken (p>0,05) dikey sıçrama, bacak kuvveti, 10 m sürat ve 20 m sürat testlerinde son testler lehine anlamlı düzeyde bir fark tespit edilmiştir (p0,05). Araştırma sonucuna göre erkek futsalcılara uygulanan sekiz haftalık tekrarlı sprint egzersizinin dikey sıçrama, sürat ve alt ekstremite kuvvet gelişimine olumlu etkiler sağladığı belirlenmiştir. Futsalda sportif başarıya ulaşmak için antrenmanlarda tekrarlı sprint egzersizleri uygulanabilir.