The purpose of this study was to compare performance factors of youth soccer players according to position. A total of 101 high school soccer players were selected and were classified into goalkeeper (n=7), defense (n=37), midfield (n=39), and forward (n=18) positions. All subjects were subjected to the Wingate test for anaerobic capacity, shuttle run test for aerobic capacity, and pass, kick, ...

We introduce skill chaining, a skill discovery method for continuous domains. Skill chaining produces chains of skills leading to a salient event—where salience can be defined simply as an end-of-task reward, or as a more sophisticated heuristic (e.g., an intrinsically interesting event (Singh et al., 2004)). The goal of each skill in the chain is to reach a state where its successor skill can ...

............................................................................................................................................... III ACKNOWLEDGEMENTS ....................................................................................................................... IV TABLE OF CONTENTS ..............................................................................................

BRIDGING THE GAP BETWEEN AUTONOMOUS SKILL LEARNING AND TASK-SPECIFIC PLANNING

BIOLOGICALLY-BASED FUNCTIONAL MECHANISMS OF MOTOR SKILL ACQUISITION

The aim of this study was to investigate the effects of different swimming race constraints on the evolution of turn parameters. One hundred and fifty-eight national and regional level 200-m (meters) male swimming performances were video-analyzed using the individualized-distance model in the Open Comunidad de Madrid tournament. Turn (p<.001, ES=0.36) and underwater distances (p<.001, ES=0.38) ...

THE PREVALENCE OF INJURY PREVENTION PROGRAMS CONTINUES TO INCREASE, BUT THE INJURY RATES REMAIN CONSTANT. THESE PROGRAMS USE A BLOCK PRACTICE SCHEDULE AND CLOSED-SKILL EXERCISES, BUT GAMES ARE RANDOM AND INVOLVE OPEN SKILLS. TO IMPROVE THE EFFICACY OF THE NEUROMUSCULAR TRAINING PROGRAMS AND TREND THE INJURY RATE DOWNWARD, THESE PROGRAMS SHOULD INCORPORATE MOTOR LEARNING THEORY. BY INCORPORATING...

Deficits in emotion regulation have been identified as an important risk and maintaining factor for depression. The aim of this study was to examine the long-term effects of emotion regulation on symptoms of depression. Moreover, we investigated which specific emotion regulation skills were associated with subsequent symptoms of depression. Participants were 116 individuals (78% women, average ...

Observable structure of variability presents a window into the underlying processes of skill acquisition, especially when the task affords a manifold of solutions to the desired task result. This study examined skill acquisition by analyzing variability in both its distributional and temporal structure. Using a virtual throwing task, data distributions were analyzed by the Tolerance, Noise, Cov...