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On initial instantaneous jumps of singular systems
IEEE Transactions on Automatic Control, 1995Summary: This paper is concerned with instantaneous jumps in the state trajectory of a singular system. it is shown that such jumps generically exist at the initial time due to inconsistent initial states. The formula for the jumps is derived, which indicates that the jumps linearly depend on the initial state.
W Q Liu, K L Teo
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The Effect of Initial Knee Angle on Concentric-Only Squat Jump Performance
Research Quarterly for Exercise and Sport, 2017There is uncertainty as to which knee angle during a squat jump (SJ) produces maximal jump performance. Importantly, understanding this information will aid in determining appropriate ratios for assessment and monitoring of the explosive characteristics of athletes.This study compared SJ performance across different knee angles-90º, 100º, 110º, 120º ...
Lachlan J.G. Mitchell +2 more
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Task-specific initial impact phase adjustments in lateral jumps and lateral landings
European Journal of Applied Physiology, 2011Load-dependant adjustments in lateral jumps are thought to rely on foot placement and on upper leg's kinematic and neuromuscular adaptations. The aim of this study was to elucidate task-specific adjustments during the initial impact phase under varying stretch-loads by the comparison of lateral jumps and lateral landings. Ten subjects performed lateral
Dominic Gehring +2 more
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