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The ping-pong argument goes back to the late 19th century and is commonly attributed [1] to Felix Klein who used it to study subgroups of Kleinian groups, that is, of discrete groups of isometries of the hyperbolic 3-space or, equivalently Möbius transformations of the Riemann sphere.
The roots of periodization come from Hans Selye's model, known as the General adaptation syndrome (GAS). The GAS describes three basic stages of response to stress: (a) the Alarm stage, involving the initial shock of the stimulus on the system, (b) the Resistance stage, involving the adaptation to the stimulus by the system, and (c) the Exhaustion stage, in that repairs are inadequate, and a ...
FEA or finite element analysis is another engineering modeling tool that applies to the field of sports engineering to simulate the physics of applied forces acting in a system. For example, FEA analysis can be used to analyze the impact of a ball against a tennis racket or different the deformation resulting from the impact of a football. [1]
For example, a concentration biceps curl attempts to isolate the biceps brachii, although by gripping the weight one also engages the wrist flexors. These exercises tend to be the most far-removed from functional movement, due to their attempt to micromanage the variables acting on the individual muscles.
These two organizations would go on to be the leading sources of collaboration among scientists in sport psychology, and in 1985, the NASPSPA became the first organization in North America to sponsor a journal in sport psychology, when the previously unaffiliated The Journal of Sport Psychology, which was founded in 1979, became The Journal of ...
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So is the 2023 Journal Star all-area girls tennis team: Julia Wojtowicz, Richwoods. The senior reached 100 career wins in her decorated career, while playing from the No. 1 slot in singles and ...
This movement has also been described as negative training. This "negative" movement is necessary to reverse the muscle from its initial trajectory. [1]When the load exceeds the force that can be developed by the muscle at a constant length, as in an eccentric muscle action, the exercise is referred to as involving negative work, because the muscle is absorbing energy.