Browsing by Author "Akyüz M."

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    Investigation of the effects of moving targets on hit force in taekwondo
    (Polish Academy of Sciences, 2016) Kumartasli M.; Üncü I.S.; Çatikkas F.; Akyüz M.; Kilim O.
    The system to be developed has been designed in order to determine the training levels of the athletes in the field of taekwondo at national and international level and to follow-up the talent development process using computer support. The progression and continuity of hit power and time-dependent performance improvement of an athlete can be measured with interactive impact measurement system. The system determines a random target. It marks the target by blue light. When the light turns on, the athlete reacts accordingly and swiftly by kicking without knowing the light timing. The athlete only needs to know where the light is. Unlike in other training systems, the piston has been able to go back and forth in response to the strike of the athlete by means of a moving hydraulic system. The athlete can be pushed back by opening the piston when his/her performance drops down. The piston strike model is deactivated when the performance of the athlete is above a given threshold value. There will be four operating phases in the mechanism depending on the impact speed of the piston. Moving target robotic system analyses various hits in Taekwondo with the aim to determine hit force and reaction time. After completion of the warming up at the first stage, the athlete will be able to increase the workout level from low to high levels and will try to keep the mechanism behind as much as possible. Moreover, the athlete will be able to compare his/her results with results of others. Using this system, the efficiency of athletes can be easily determined and deficiencies can be resolved.
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    The effects of various strength training intensities on blood cardiovascular risk markers in healthy men; [Sağlıklı erkeklerde farklı kuvvet egzersizi yoğunluklarının kan kardiyovasküler risk belirteçleri üzerindeki etkileri]
    (De Gruyter Open Ltd, 2021) Akyüz M.; Doğru Y.; Nalcakan G.R.; Ulman C.; Taş M.; Varol R.
    Objectives: Regular physical exercise, especially aerobic exercise, is known to have a protective effect on cardiovascular health. The aim of this research is to look at the impact of two separate resistance training programs on blood biomarkers that are associated with the early detection of cardiac risk. Methods: Forty-five male participants (mean 41 years) were randomly divided into three groups: The low-intensity resistance exercise group (LIEG), the moderate-intensity resistance exercise group (MIEG), and the control group (CG). The programs were implemented three times a week and in two sets. MIEG consisted of 8–10 repeats at 70–80% density of one repetition maximum load (1RM), while LIEG consisted of 15–17 repeats at 50–60% density of 1RM. CG did not participate in any exercise program. Two-factor mixed-design ANOVA assessed the data. Results: Before, fourth week, and after the exercise program in repeated measurements, there was a significant decrease in body mass (−1.7%), body mass index (−1.7%), apelin (−44%), and pentraxin 3 (−39%) levels in MIEG (p < 0.05). Additionally, our study noted a decrease in pentraxin 3 (−25%, p < 0.05) and interleukin 6 (−21%) levels, while there was an increase in creatine kinase (18%), and lactate dehydrogenase (7.4%) levels in LIEG. Strength levels improved significantly in exercise groups. Conclusions: Eight weeks of moderate-resistance training can potentially reduce the cardiovascular risk in healthy men. © 2021 Murat Akyüz et al., published by De Gruyter.
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    Effects of a 12-week structured circuit exercise program on physical fitness levels of children with autism spectrum condition and typically developing children
    (Taylor and Francis Ltd., 2022) Arslan E.; Ince G.; Akyüz M.
    Purpose: This study aimed to determine the effects of a circuit exercise program on the physical fitness parameters of children with atypical autism spectrum condition (ASC) and typically developing (TD) children. Method: Fourteen (14) boys with atypical autism (mean age: 10.07 ± 0.25 years; weight: 24.97 ± 0.64 kg; height: 126.79 ± 1.33 cm) and 14 typically developing boys (mean age: 10.07 ± 0.30 years; weight: 26.97 ± 0.55 kg; height: 126.50 ± 0.62 cm) participated in the study. The children were divided into four groups using a random coin toss: Autism Exercise Group (AEG), Autism Control Group (ACG), Typically Developing Exercise Group (TDEG), and Typically Developing Control Group (TDCG). Testing parameters from the Bruininks-Oseretsky test of gross motor proficiency (BOT-2) included running speed and agility, balance, bilateral coordination, and the standing long jump. Handgrip strength (both sides), reaction times (visual and auditory), and flexibility tests were also performed. The exercise program consisted of three 60-minute sessions per week for 12 weeks, using the most-to-least prompting method. Findings: Significant improvements were observed for AEG in running speed and agility, balance, standing long jump, reaction times, handgrip strength, and flexibility (p < 0.05). For TDEG, only the standing long jump scores failed to significantly improve (p <.05). Comparing AEG and TDEG pre- and post-test results, the former showed 30% greater development with respect to balance, standing long jump, auditory reaction time, and handgrip strength (p < 0.05). Conclusion: Based on the significant improvements in physical fitness parameters of AEG, we recommend that children with ASC start sports training immediately when diagnosed with autism and participate in structured physical activities with their peers. © The British Society of Developmental Disabilities 2020.