16 research outputs found

    The Investigation of Physical Performance Status of Visually and Hearing Impaired Applying Judo Training Program

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    It was aimed to investigate the physical performances of visually and hearing impaired doing judo training in this study. 32 male athletes, who were doing judo training, volunteer and, visually and hearing impaired, participated in this study. The investigation was applied to visually impaired (N=12, mean ± SD; age: 25.75 ± 3.55 years, height: 169.50 ± 9.41 cm, weight: 74.17 ± 20.17 kg, sport age: 6.42 ± 1.62) and hearing impaired (N=20, mean ± SD; age: 19.25 ± 5.70 years, height: 172.55 ± 7.58 cm, weight: 70.55 ± 11.12 kg, sport age: 5.85 ± 1.60) male judoka.Flamingo balance test score averages for study groups were detected as 8.00 ± 3.27 min/pc in visually impaired male judoka and 13.50 ± 3.08 min/pc in hearing impaired male judoka. There was a significant association between two groups in favor of visually impaired judoka (p0.05).In conclusion, it is thought that there is no negative effect of vision and hearing impairment factors on physical performance levels due to the close proximity of training levels of the elite judoka and also there is more development in balance variables in visually impaired when compared to hearing impaired due to the properties of impairment degree

    The Effects of Ten Weekly Plyometric Training of Judokas on Anaerobic Power

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    This study was conducted to determine the effects of ten weekly plyometric training on anaerobic power in judokas. 30 male judokas participated in the study and the subjects were divided into two groups as an experimental (15 male age = 21,40 ± 1,99) and control (15 male age = 21,53 ± 1,80) groups. Judo training programme was applied in both groups for 3 days / 90 minutes per week. Experimental and control group were made warm up exercises for 20 minutes. Both groups continued with the special preparatory period judo training program. After warm up exercises, experimental group judokas were made plyometric training consisting of 15 different movements for 20 minutes. Then they were allowed to continue the judo training. As the groups showed normal distribution, Paired Samples T-Test was applied for the significance between pre-test and post-test measurements of the groups. Independent Samples T-Test was used to analyze the difference between the test group and control group. The Independent Samples T-Test was used to analyze the difference between the experimental group and the control group. As a result of the plyometric training, when the pre-test and post-test differences of the physical measurement parameters for the experimental and control groups were compared, the mean values of back strength, anaerobic power and body fat percentage were found to be significant(p0.05). As a result, it is seen that the regular plyometric exercises increase the performance of anaerobic power to judokas. It can be said that putting plyometric training besides judo training has a positive effect for performance

    Relationship Between Body Composition and Muscle Strength in Early Adolescence Goal-Ball players with Visual Impairments

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    adolescence goal-ball players with visual impairments. Methods: Thirteen early adolescence goal-ball players with visual impairments that are goal-ball players participated (mean age 13.54±1.27 years, height 155.23±10.86 cm and, body weight 48.23±10.43 kg). Body composition measurements that were assessed included body mass index, body fat percentage and skinfold (abdominal, subscapular, triceps and suprailiac). Participants were also assessed on several strength measurements including standing long jump, the right hand grip, left hand grip, vertical jump, leg strength, sit-up and push up. Results: Positive correlations between ages and height with the standing long jump, the right hand grip, the left hand grip, vertical jump were found in the early adolescence goal-ball players with visual impairments (P\u3c0.05). Negative correlations were found between body mass index and body fat percentage with standing long jump, vertical jump, sit-up (P\u3c0.05) and among skinfold (subscapular, triceps and suprailiac) with standing long jump, the right hand grip, left hand grip, vertical jump, push up (P\u3c0.05) and between abdominal skinfold with standing long jump, the right hand grip, left hand grip, vertical jump, sit-up, push up (P\u3c0.05). On the other hand, there was not a correlation between body weight with muscle strength and leg strength with body composition (P\u3e0.05). Conclusins: In an assessment of body composition and muscle strength, it was found that body weight did not significantly impact muscle strength in early adolescence goal-ball players with visual impairments. This finding could be of importance for understanding the role of muscle strength and body composition in routine training of goal-ball players

    The Investigation of Some Physical, Physiological and Anthropometric Parameters of Visually Impaired and Non-impaired a National Male Judoka

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    It was pointed to analyze some physical, physiological and anthropometric parameters of visually impaired and non-impaired A National male judoka in this study. A total of 14 volunteer A National male judoka, of which 8 were visually impaired (age: 25.12 ± 3.75, disability status: 20-200) and 6 were not visually impaired (age: 21.50 ± 1.51), participated in this study. Statistical data was evaluated by using Independent Samples T-test in SPSS package program. There were no considerable difference between impaired and non-impaired judoka with respect to grip strength, vertical jump, 30-s sit-up, 30-s push-up, anaerobic power and auditory reaction test parameters among the physical and physiological tests. No significant difference between impaired and non-impaired judoka was detected with respect to body fat ratio, one of the anthropometric measurements performed. All in all, it was observed in national judoka investigated in this study that impairment variable didn’t significantly affected physical, physiological and anthropometric parameter values (p>0.05). It is considered that vision factor doesn’t have negatory impact on the physical performance grades because of the similarity of the elite judoka’s training levels

    Analysis of Reaction Times and Aerobic Capacities of Soccer Players According to Their Playing Positions

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    70 soccer players in Gaziantep amateur league voluntarily participated in this study, (average of their ages 19,17±1,34years, average of their heights 181,28±5,06 cm, average of their body weights 76,75±4,43 kg and average of their sports experiences 3,78±0,95 years) to analyze visual and auditory reaction times and aerobic capacities of amateur soccer players according to their playing positions. The reaction times against light and sound of right and left hands were measured by ‘Newtest Reaction Timer.’ The aerobic capacity measurements of players in this study were determined by shuttle sprint test. In comparison of left and right hand reaction times, it was statistically found that goalkeepers had the best reaction times and midfielders had better reaction times than forwards and defenders (P<0,05). In comparison of aerobic capacities of their playing positions, it was found that MaxVO2 levels of goalkeepers were lower than that of midfielders and forwards (P<0.05). In conclusion, it was found that the factors such as MaxVO2 level and reaction time which affect the performances of players nowadays and differ according to their playing positions. It is considered that these differences result from the different training programs according to the playing positions

    Effect of time‐varying humidity on the performance of polymer electrolyte membrane fuel cells

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    Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/99063/1/er2920.pd

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    Karakoc, Tahir Hikmet Hikmet/0000-0001-8182-8667;WOS: 000348028600001[No abstract available

    Energetic and exergetic performance assessment of a turboprop engine at various loads

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    Karakoc, Tahir Hikmet Hikmet/0000-0001-8182-8667;WOS: 000328571400007It is necessary to understand the mechanisms that have enabled improvements of performance parameters such as thermodynamics efficiencies, thrust or power, specific fuel consumption and specific power in aero engines, thus reducing environmental impact. in this study, a thermodynamic analysis of a turboprop engine is performed at full and partial load conditions. the maximum overall and exergy efficiencies of the turboprop are found to be 30.7 and 29.2%, respectively. the minimum specific fuel consumption and maximum shaft power are found to be 0.2704 kg (kWh)(-1) and 1948 shp at maximum load, respectively. More important, the optimum functional load conditions of the engine are observed at higher loads. the results from this study are expected to assist propeller aero-engine design work, where the first and second laws provide a more comprehensive assessment of performance, allowing the turboprop engine concept to be better tailored to specific types of regional transport aircraft.Anadolu University, EskisehirAnadolu University; Recep Tayyip Erdogan University, Rize, TurkeyRecep Tayyip Erdogan UniversityThe authors are grateful for the support provided for the present work by Anadolu University, Eskisehir and Recep Tayyip Erdogan University, Rize, Turkey. They also would like to express their appreciation to TUSAS Engine Industries (TEI) and TUAF in Eskisehir city of Turkey for full support throughout the preparation of this study, while they would like to thank the reviewers for their valuable comments, which helped in increasing the quality of the paper

    Exergetic Sustainability Indicators as a Tool in Commercial Aircraft: A Case Study for a Turbofan Engine

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    6th International Green Energy Conference (IGEC) -- JUN 05-09, 2011 -- Eskisehir, TURKEYKarakoc, Tahir Hikmet Hikmet/0000-0001-8182-8667WOS: 000348028600005This paper focuses on the exergetic sustainability indicators of a medium-range commercial aircraft engine for constant reference environment and ground running conditions. First, a detailed exergy analysis of turbofan engine have been performed based on engine test cell parameters. Starting from the sustainability considerations and the second law of the thermodynamics, the paper presents six exergy-based sustainability indicators. the indicators of the turbofan engine developed here in conjunction with exergetic analysis and sustainable development are exergy efficiency, waste exergy ratio, exergy destruction factor, recoverable exergy rate, environmental effect factor, and exergetic sustainability index. the investigated sustainable indicators have been calculated by using exergy analysis outputs for aircraft ground running condition. Results from this study show that values of exergy efficiency, waste exergy ratio, exergy destruction factor, recoverable exergy rate, environmental effect factor, and exergetic sustainability index of investigated turbofan engine are found to be 0.315, 0.685, 0.408, 0, 2.174, and 0.460, respectively. These parameters are expected to quantify how the turbofan engine and aircraft become more environmentally benign and sustainable.Turkish Engine Industries (TEI), Anadolu UniversityAnadolu University; Recep Tayyip Erdogan University in TurkeyRecep Tayyip Erdogan UniversityThe authors acknowledge the support provided by Turkish Engine Industries (TEI), Anadolu University and Recep Tayyip Erdogan University in Turkey
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