نتایج جستجو برای: acid throwing

تعداد نتایج: 750587  

2017
Carmen Manchado José García-Ruiz Juan Manuel Cortell-Tormo Juan Tortosa-Martínez

In handball, throwing velocity is considered to be one of the essential factors in achieving the ultimate aim of scoring a goal. The objective of the present study was to analyze the effect of a core training program on throwing velocity in 30 handball players (age 18.7 ± 3.4 years, body height 179.3 ± 7.0 cm, body mass 78.9 ± 7.7 kg), 16 of whom were in the junior category and 14 of whom were ...

Journal: :The Journal of bone and joint surgery. American volume 1995
Jason J Jancosko Jack E Kazanjian

Shoulder injuries in the throwing athlete are becoming more frequent. Sports specialization at a younger age, playing multiple seasons, increased awareness of injury and injury prevention, advances in diagnosis, and surgical treatment all play a part in the increase in diagnosis of these injuries. Understanding the biomechanics of throwing and pathologies that are encountered in the throwing at...

2013
CAIPING WANG

Shot putting is an important component of track and field events and the throwing distance (s, m) is the greatest concern of coaches and athletes. There are mainly three major factors affecting throwing distance: the initial velocity (v, m/s), release angle (A, °) and release height (h, m) in shot push. So far, it is common to use the physical kinematics knowledge in the research of shot puttin...

2006
Qin Zhu Geoffrey P. Bingham

Bingham, Schmidt and Rosenblum (1989) found that people could, by hefting objects of different sizes, choose that of optimal weight in each size for throwing to a maximum distance. Larger weights were chosen in larger sizes as required for equivalent perceived heaviness according to the size-weight illusion. In Experiment 1, we replicated that result testing a larger range of objects and more p...

2009
Shinji Sakurai

Overhand throwing motion is often regarded as one of the basic motions along with walking, running, and jumping. Three-dimensional (3-D) image analysis of the kinematics and kinetics using of rigid body segment model of overhand throwing motion has been studied widely in recent years. In this paper biomechanical research on throwing is reviewed with a special focus of studies from Japan. Consid...

Journal: :Science 1893

2017
Allan Fu Richard Smith Steve Cobley Ross Sanders

The purpose of this study was to identify the role of humeral elevation of the non-throwing arm in relation to maximum ball velocity (MBV) in unconstrained overarm throws in children aged 12-14. 3D motion analysis was used to investigate the throwing technique of 144 students. The group was classified as ‘skilled’ or ‘less skilled’ based on MBV at release. Joints kinematics and timing of segmen...

2012
Ikram Hussain

Throwing is one of the most important and complex skills within the game of Cricket. In a throwing motion every movement of the segment/part counts. There are different types of throws and a player is expected to be able to perform the throw accurately. There are numerous aspects of throwing performance making it a complex skill to master, such as velocity, movement, etc. It has been shown that...

Journal: :Orthopaedic journal of sports medicine 2014
Maria Klein Ignazio Tarantino René Warschkow Claus Joachim Berger Vilijam Zdravkovic Bernhard Jost Michael Badulescu

BACKGROUND Shoulders of throwing and swimming athletes are highly stressed joints that often show structural abnormalities on magnetic resonance imaging (MRI). However, while water polo players exhibit a combination of throwing and swimming movements, a specific pattern of pathological findings has not been described. PURPOSE To assess specific MRI abnormalities in shoulders of elite water po...

Journal: :The Orthopedic clinics of North America 2010
R Michael Greiwe Christopher S Ahmad

Repetitive throwing or other overhead activity places great stress on the shoulder. As a result, the shoulder is a common site of injury in athletes. Addressing throwing-related injuries requires an understanding of throwing biomechanics and pathology. Nonoperative treatment is directed at restoring strength, flexibility, and neuromuscular control to the entire kinetic chain. Surgery is indicat...

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