THE EFFECT OF PLYOMETRIC TRAINING PROGRAM ON PHYSICAL PERFORMANCE IN BASKETBALL PLAYERS

The aim of this study is to examine the effect of a plyometric training program on the physical performance of basketball players. 24 male basketball players between the ages of 18-36, who regularly practice basketball, participated in the study voluntarily. Participants were divided into two different groups as the experimental group (n=12, age: 26.50±4.58) and the control group (n=12, age: 22.32±0.90). A plyometric training program was applied to the experimental group 3 days a week for 6 weeks. Both participating groups continued their regular basketball training during the season. In addition to basketball training in the experimental group; Plyometric exercises known as Lateral jump, Box jump, Squat jump, Nordic hamstring curl, Overhead slam, Plyometric push-ups, and Medicine ball bench press were applied. Flexibility, balance, vertical jump, shuttle run test, speed, and T-test were measured before and after the training. SPSS 22.0 package program was used for the statistical analysis of the data. The Shapiro-Wilk test was used for the normality test. Paired Samples T-test was used for comparisons within groups. The significance level was determined as p<0.05. Significance was found in the flexibility, balance, vertical jump, shuttle run, speed, and T-test values of the experimental group (p<0.05). The values of the control group were not significant (p>0.05). As a result, it can be said that the 6-week plyometric training program applied to basketball players has a positive effect on physical performance.  Article visualizations

KONYA BANKACILIK SEKTÖRÜNDE EĞİTİM VE KARİYER FIRSATLARI AÇISINDAN İŞ TATMİNİNİN ÖRGÜTSEL BAĞLILIK ÜZERİNE ETKİSİ

Örgütlerin en önemli amacı varlığını sürdürebilmektir. Bu amacı gerçekleştirecek olan ise insan faktörüdür. insan faktörü ancak etkin ve verimli olduğunda nihai amaca ulaşılacaktır. Etkinlik ve verimliliğe ise tatmin edilmiş ve mutlu olmuş işgörenlerle ulaşılabilir. Bu durum örgütler açısından bilgiyi kullanacak olan nitelikli insan kaynağının önemini artırmaktadır. Dolayısıyla örgütsel bağlılığın sağlanması, örgütlerin amaçlarına ulaşmasında kritik bir rol oynamaktadır. Bu çalışmada Konya bankacılık sektöründe çalışanların iş tatmin faktörlerinden eğitim ve kariyer fırsatlarının örgütsel bağlılığına olan etkisi incelenecektir. Çalışma üç kısımdan oluşmaktadır. Birinci kısımda iş tatmini ve örgütsel bağlılık arasındaki ilişki eğitim ve kariyer fırsatları açısından incelenecek, ikinci kısımda çalışmanın metodolojisi anlatılacak ve üçüncü kısımda çalışmaya ilişkin bulgular verilecek ve sonuçlar yorumlanacaktır

Ultrasound evaluation of metabolic syndrome patients with hepatosteatosis

Objective: The exact incidence of hepatosteatosis in patients with metabolic syndrome (MetS) is unknown; also there is no valid, simple and inexpensive method to evaluate and follow-up for patients with MetS. In our study, we aimed to demonstrate the frequency of hepatosteatosis, and whether demonstrate presence and degree of steatosis using liver ultrasonography may provide additional benefit for evaluating and following-up in MetS patients with non-alcoholic fatty liver disease. Methods: One hundred and twelve patients with MetS were included to the study. Patients divided into three groups; control group (n= 36) consisted of patients without hepatosteatosis, group 1 (n=43) consisted of patients with grade 1 hepatosteatosis. Finally, group 2 (n= 33) consisted of patients with grade 2 hepatosteatosis. The relationship between the presence and degree of the hepatosteatosis and MetS parameters were analyzed.Results: The incidence of hepatosteatosis was found 69.4% in patients with MetS. There were significantly differences in HOMA-IR, AST, ALT and GGT levels among control group and group 1 (p<0.05 for all). There were also significantly differences in waist circumference, fasting blood glucose, fasting insulin, HOMA-IR, AST, ALT, GGT, ferritin, CRP, sedimentation, uric acid and microalbuminuria levels among control group and group 2 (p<0.05 for all). Blood pressures and lipid profiles were similar among all groups (p>0.05 for all). Besides, there were significantly differences in waist circumferences, fasting insulin, HOMA-IR, GGT, uric acid, CRP levels among group 1 and 2 (p<0.05 for all).Conclusion: Our study indicates that MetS related parameters; especially insulin resistance, were significantly different in patients with hepatosteatosis compared to patients without hepatosteatosis. Because of the different measurment of waist circumferences among groups, we recommend to use liver ultrasonography and waist circumference together to evaluate and follow-up for MetS patients with hepatosteatosis. J Clin Exp Invest 2013; 4 (2): 153-158Key words: Fatty Liver, metabolic syndrome X, ultrasonograph

Investigation of wear behavior of aged and non-aged SiC-reinforced AlSi7Mg2 metal matrix composites in dry sliding conditions

Metal matrix composites (MMCs) with their splendid mechanical properties have been specifically designed for use in fields such as aerospace and aviation. The presence of hard ceramic particles in MMC increases the hardness of the matrix product and decreases its coefficient of friction. Therefore, the wear resistance is improved. Moreover, the mechanical properties of these composite materials can be improved by applying heat treatments. In this study, AlSi7Mg2 MMCs with 15 wt% SiC reinforcement were produced by squeeze casting technique. Some of the composites were aged by heat treatment. Hardness values of aged and non- aged composites were compared. In addition, abrasive wear behaviors of these composites were investigated on pin-on-disk device, depending on the load (7, 12 and 17 N), the sliding speed (0.2, 0.3 and 0.4 m/s) and the sliding distance (700, 1000 and 1300 m). Worn surfaces were also analyzed by scanning electron microscopy (SEM). As a result of the analyses, it was determined that both the hardness values and the wear resistance were higher in the composites subjected to aging treatment. Furthermore, it was observed that the increase in the applied load led up to the weight loss. The increase in the sliding distance increased both friction coefficient and weight loss. The increase in sliding speed also made way for the friction coefficient but ensured less weight loss. When SEM images were examined, it was ascertained that deformation and tribo-surface formation had a significant effect on weight losses

Elicitation of the factors affecting electricity distribution efficiency using the fuzzy AHP method

Efficient and uninterrupted energy supply plays a crucial role in the quality of modern daily life, while it is obvious that the efficiency and performance of energy supply companies has a significant impact on energy supply itself and on determining and finetuning the future roadmap of the sector. In this study, the performance and efficiency of energy supply companies with respect to productivity is investigated with reference to a case study of an electricity distribution company in Turkey. The factors affecting the company’s performance and their corresponding weight have been determined and obtained using the analytical hierarchy process (AHP) and the Fuzzy AHP methods, two well-known multi-criteria decision-making methods, which are widely used in the literature. The results help demonstrate that the criteria obtained to evaluate the company’s energy supply performance play a crucial role in developing strategies, policies and action plans to achieve continuous improvement and consistent development

Evaluación de parámetros de estrés oxidativo y actividades metabólicas de enfermeras trabajando en turnos diurnos y nocturnos

Se objetivó evaluar estrés oxidativo y actividades metabólicas de enfermeras en turnos diurnos y nocturnos. Participaron enfermeras de Unidad de Terapia Intensiva (UTI, n=70) y del servicio común (SC, n=70). Se obtuvieron muestras sanguíneas al inicio y al final de los turnos para medir parámetros de estrés oxidativo. Las actividades metabólicas también fueron analizadas utilizando brazaletes SenseWear. Los parámetros de estrés oxidativo aumentaron hacia el final de los turnos de todas las enfermeras SC y UTI, comparados con la medida de inicio. Los niveles de TAS, TOS y OSI no eran significativamente diferentes entre enfermeras SC y UTI al cierre de los turnos diurnos y nocturnos. Las actividades metabólicas de enfermeras SC y UTI se mostraron similares. Consecuentemente, los parámetros de estrés oxidativo y las actividades metabólicas de enfermeras SC y UTI no resultaron diferentes, y todas las enfermeras sufren efectos semejantes en sus turnos, tanto diurnos como nocturnos.O objetivo deste estudo foi avaliar o estresse oxidativo e as atividades metabólicas das enfermeiras em turnos diurnos e noturnos. Enfermeiras da Unidade de Tratamento Intensivo (UTI) (n=70) e do serviço comum (SC) (n=70) participaram do estudo. Logo no início e ao final dos turnos, amostras de sangue foram obtidas para medir parâmetros de estresse oxidativo. Atividades metabólicas também foram analisadas com o uso da braçadeira SenseWear. Parâmetros de estresse oxidativo aumentaram no fim dos turnos de todas as enfermeiras SC e UTI quando comparados ao início dos turnos. Comparados às enfermeiras SC, os níveis de TAS, TOS e OSI das enfermeiras de UTI não eram significativamente diferentes no final dos turnos diurnos e noturnos. Além disso, as atividades metabólicas das enfermeiras de SC e UTI se revelaram como sendo similares. Assim, os parâmetros de estresse oxidativo e as atividades metabólicas das enfermeiras SC e UTI não eram diferentes, e todas as enfermeiras sofrem efeitos semelhantes dos turnos, tanto no dia quanto na noite.The aim of this study was to evaluate the oxidative stress and metabolic activities of nurses working day and night shifts. Intensive care unit (ICU) (n=70) and ordinary service (OS) nurses (n=70) were enrolled in the study. Just before and the end of the shifts, blood samples were obtained to measure the participants' oxidative stress parameters. Metabolic activities were analyzed using the SenseWear Armband. Oxidative stress parameters were increased at the end of the shifts for all OS and ICU nurses compared to the beginning of the shifts. Compared to the OS nurses, the ICU nurses' TAS, TOS, and OSI levels were not significantly different at the end of the day and night shifts. The metabolic activities of the OS and ICU nurses were found to be similar. As a result, the OS and ICU nurses' oxidative stress parameters and metabolic activities were not different, and all of the nurses experienced similar effects from both the day and night shifts

Association Between Bifurcation Angle and Coronary No-reflow Following Primary Percutaneous Coronary Intervention in Patients

Objective:Percutaneous coronary intervention (PCI) has become the treatment method for patients presenting with ST elevation myocardial infarction (STEMI). One of the well-known complications of PCI is no-reflow. Studies demonstrated a relationship between endothelial dysfunction and disturbed vascular flow due to angulation of vascular tree. Although the relationship between hemodynamic alterations and coronary angulation is evident, there is a lack of detailed analysis in terms of hemodynamic changes between vascular geometry and coronary no-reflow. We aimed to elucidate the relationship between vascular geometry and coronary no-reflow.Method:We reviewed PCI database of our hospital and enrolled a total of 120 patients with STEMI, who developed no-reflow following PCI, and sex and age matched 80 patients with normal flow. For each group, demographic and clinical characteristics, laboratory values and two dimensional quantitative coronary angiography measurements were evaluated.Results:Patients with no-reflow had a higher prevalence of hypertension and diabetes mellitus. In addition, serum C-reactive protein levels were higher in patients with no-reflow compared to patients with normal flow (p<0.001). On the other hand, serum hemoglobin levels were significantly lower in patients with no-reflow compared to patients with normal flow (p<0.001). With respect to 3 dimensional coronary measurements, calculated bifurcation angle of left anterior descending artery (LAD) and circumflex artery (CX) was significantly wider in the no-reflow group than in the control group [110.9° (21.8°) vs. 85.9° (15.8°), p<0.001].Conclusion:Our data showed that a strong association existed between bifurcation angle of LAD-CX and no-reflow phenomenon in STEMI patients who underwent PCI

Long-Term Outcomes Of Vitrectomy And Internal Limitıng Membrane Peeling For Myopic Foveschisis

INTRODUCTION: To evaluate the long-term results of pars plana vitrectomy (PPV) combined with internal limiting membrane (ILM) peeling in patients with myopic foveoschisis (MF) METHODS: In this retrospective study, the medical records of the patients who underwent PPV combined with ILM peeling due to myopic foveoschisis were examined. The best corrected visual acuity (BCVA) and the change in BCVA were evaluated. Preoperatively fovea detachment (FD), presence of postoperative ellipsoid zone defect (EZD), and preoperative and postoperative central macular thickness (SMC) were evaluated using optical coherence tomography (OCT). RESULTS: Twenty-five eyes of 20 patients were included in the study. The mean preoperative BCVA was 1.41 +- 0.32 logMAR (1.0-1.8 logMAR) and postoperative BCVA was 0.87 +- 0.41 logMAR (0.3-1.8 logMAR). Postoperative visual acuity improved in 20 eyes (80%). Postoperatively, 4 eyes (16%) had no change in visual acuity and 1 eye (4%) had a decrease in visual acuity. The mean CMT was 683.8 µm +- 155.4 and 262.6 µm +- 46.5 preoperatively and postoperatively, respectively. There was a significant decrease in CMT in the first year after surgery when it was compared with the preoperative CMT (p &lt;0.001). In 20 (80%) eyes, foveoschisis was completely resolved anatomically in the first year after surgery. In 5 eyes (20%), there was a decrease in CMT in the OCT, and a partial improvement in the foveoschisis. DISCUSSION AND CONCLUSION: It is concluded that vitrectomy combined with ILM peeling in the treatment of myopic foveoschisis is an effective and reliable surgical method for increasing visual acuity and providing anatomical improvement

Is Peer Assessment Reliable in Objectively Structured Clinical Examination?

Objective:The study was designed to evaluate the reliability of the peer assessment in the objectively structured clinical examination (OSCE) for the summative assessment of 4th grade students at the end of general surgery clerkship.Method:The study was planned prospectively with the permission of the Dean of Medicine Faculty and approval of the ethics committee. The 6th grade students who were in the surgery rotation participated in the study as peer assessors (PA). Both peers and department of general surgery assessed the students. Pass/fail point was accepted as 60. The scores of OSCE and performance evaluation given by peers and faculty were compared statistically.Results:Twenty-three students completed general surgery clerkship. Ten students (43.5%) were female. According to performance scores given by the faculty, 15 (65.2%) of the 23 students were successful, while all students were considered successful (having a grade of 60 or more) based on the scores of peer evaluation. There was a significant difference between the faculty members and PA with regard to the performance evaluation (p=0.008). The faculty members found five students (27.8%) successful in the OSCE (having a grade of 60 or more). However, ten students (43.5%) received a score of at least six from peer evaluation. Although there was a difference, it was not significant (p=0.063). Gender did not affect scoring in performance evaluation and OSCE application.Conclusion:Although there was a difference between faculty members and peer evaluators in the performance evaluation, no difference was observed in OSCE. In conclusion, OSCE assessment by peer evaluators is reliable

Evaluation of the safety of intracameral trypan blue injection on corneal tissue using oxidative stress parameters and apoptotic activity: an experimental study

Purpose: The present experimental study aimed to investigate the effects of intracameral trypan blue (TB) on oxidative stress parameters and apoptosis in corneal tissue. Methods: Thirty rats were randomly assigned to three groups of 10 rats each: the sham group (Group 1); control group (Group 2); and treatment group (Group 3). The control group was administered 0.01 cc of balanced salt solution. The treatment group was administered 0.006 mg/0.01 cc of TB. The total antioxidant status (TAS) and total oxidant status (TOS) in corneal tissue and blood were measured and the oxidative stress index (OSI) was calculated. Finally, corneal tissue histopathology was evaluated using staining for caspase-3 and -8, and apoptotic activity was examined. Results: The TAS, TOS and OSI levels in the blood samples were not significantly different (p>0.05 for all). Compared with the sham and control groups, the TOS and OSI levels in corneal tissue were significantly different in the treatment group (p<0.05 for all). No significant difference was observed between the sham group and the control group (p>0.05). Immunohistochemical staining for caspase-3 and caspase-8 demonstrated higher apoptotic activity in the TB group than in the sham and control groups. Conclusion: The present study showed that intracameral TB injection is safe systematically but may be toxic to corneal tissue, as demonstrated using oxidative stress parameters and histopathological evaluation