Güreşçilerde bacak hacmi, bacak kütlesi, anaerobik performans ve bacak kuvveti arasındaki ilişki

The purpose of the present study was to determination of the relationship between leg volume, leg mass with anaerobic performance and knee strength in wrestlers. 31 wrestlers from a university students participated in this study voluntarily (X age: 21.09 ± 0.99 yrs). Circumferential measurement were used for the determination of leg volume by Frustum Method and after that, a regression formula was used. For this formulas, while the R square (R2) value was .95 and the standart error value was .056. Leg mass was determined by the Hanavan Method. Wingate Anaerobic Power Test (WAnT) was used for the determination of anaerobic performance and Isometric Knee Dynamometer was used for the determination of knee strength. Results of Pearson Product Moment correlation analysis, leg volume was significantly correlated with leg mass (r=.993; pBu çalışmanın amacı güreşçilerde bacak hacmi, bacak kütlesi, anaerobik performans ve bacak kuvveti arasındaki ilişkinin belirlenmesidir. Çalışmaya farklı kulüplerde güreş branşıyla uğraşan 31 (X yaş: 21.09±0.99 yıl) gönüllü erkek üniversite öğrencisi katılmıştır. Deneklerin bacak hacmi Frustum yöntemi ile belirlendikten sonra doğrusal regresyon formülü kullanılmıştır. Bu formülün tanımlayıcılık katsayısı R2=.95 ve kestirim standart hatası .056’dır. Bacak kütlesi ise Hanavan çevresel ölçüm yöntemi ile belirlenmiştir. Anaerobik performans ise Wingate anaerobik güç ve kapasite testi ile belirlenirken bacak kuvveti belirlemek içinse İzometrik bacak kuvveti dinamometresi kullanılmıştır. Yapılan Pearson Çarpımlar Moment Korelasyon sonucunda elde edilen bacak hacmi ile bacak kütlesi (r=.993; p<0.01),  pik güç (r=.642; p<0.01), ortalama güç (r=.711; p<0.01) arasında anlamlı ilişki bulunmuştur. Bu benzer bir ilişkide bacak kütlesi ile pik güç (r=.654; p<0.01), ortalama güç (r=.704; p<0.01) arasında bulunmuştur. Sonuçlar göstermiştir ki pik güç ile bacak kuvveti (r=.430; p<0.05) arasında anlamlı ilişki bulunurken ortalama güç ile de bacak kuvveti (r=.613; p<0.01) arasında ilişki bulunmuştur. Sonuç olarak, çalışmadaki bulgular güreşçilerin bacak hacminin ve bacak kütlesinin anaerobik performanslarında belirleyici rol aldığını göstermiştir. Ayrıca izometrik bacak kuvveti ile anaerobik performans arasında ilişki bulunmuştur

Fault Tree Analysis of Tanker Accidents during Loading and Unloading Operations at the Tanker Terminals

One of the most important elements of maritime transportation which is a way of the world trade is the ships. Depending on their purpose, the vessels include many classifications, such as; commercial vessels, service vessels and war ships. Commercial vessels include tankers. Therefore, tankers that are an important point of trade have been developing together with technology. However, the measures taken by the developing technology and the regulations in the maritime sector made cannot reduce the sea accidents to zero. In this study, marine accidents occurred during loading and unloading operations at the tanker terminals were analyzed in terms of human factor and safety. Reports in between 2000 and 2014 of IMO (International Maritime Organization) GISIS (Global Integrated Shipping Information System), MAIB and Maritime Safety Authority of New Zealand and others were investigated. A total of 10 vessel accidents involving the appropriate data were analyzed and classified according to the results. Fault Tree Analysis (FTA) method was used to create the causes of accidents and the results have been tested with Monte Carlo Simulation. As a conclusion, failure to comply with operating procedures and lack of knowledge were found to be the most important factors