منابع مشابه
Analysis of Kinetic Chain Mechanism Affecting Energy Flow in Kick Topspin Tennis Serve in Elite and Amateur Tennis Players
Background. Effective kick-topspin serving in tennis requires power to transfer mechanical energy through a kinematic chain from different parts of the body that is directly related to the kinetics of the joints. Energy flow analysis is a powerful tool for observing the mechanical energy transfer through the body parts. Objectives. This research aimed to study the correlation and predictive ab...
متن کاملSurface kinetic energy transfer in surface quasi-geostrophic flows
The relevance of surface quasi-geostrophic dynamics (SQG) to the upper ocean and the atmospheric tropopause has been recently demonstrated in a wide range of conditions. Within this context, the properties of SQG in terms of kinetic energy (KE) transfers at the surface are revisited and further explored. Two well-known and important properties of SQG characterize the surface dynamics: (i) the i...
متن کاملKinetic Modeling of Mass Transfer During Roasting of Soybeans Using Combined Infrared-Hot Air Heating
ABSTRACT: Roasting is one of the widespread methods for processing of nuts and beans that significantly enhances the flavor, color, texture and appearance of the products. In this research the kinetics and modeling of soybean roasting using combined infrared-hot air system and consumption of energy were investigated. The effect of the hot air temperature (160, 180 and 200 ºC), infrared powers (...
متن کاملTemporal distribution of attentional demands during a tennis serve
In the current research, the dual-task paradigm was used to examine the temporal distribution of attentional demands during a tennis serve. Twenty experienced tennis players to performed tennis serves. The participants were asked to respond verbally to an auditory tone presented at four probe positions (PPs) during tennis serves. The probe reaction time measure of attention was administered dur...
متن کاملTransfer of mechanical energy during the shot put
The aim of this study was to analyse transfer of mechanical energy between body segments during the glide shot put. A group of eight elite throwers from the Polish National Team was analysed in the study. Motion analysis of each throw was recorded using an optoelectronic Vicon system composed of nine infrared camcorders and Kistler force plates. The power and energy were computed for the phase ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Human Sport and Exercise
سال: 2009
ISSN: 1988-5202
DOI: 10.4100/jhse.2009.42.05