5 Questions
Quin és l'objectiu principal de l'estudi sobre la pràctica d'atac al voleibol que es discuteix?
Comparar l'eficàcia de l'enfocament CLA amb els mètodes tradicionals.
Quants participants van formar part de l'estudi sobre la pràctica d'atac al voleibol?
12 participants
Quantes vegades a la setmana van practicar els jugadors durant l'estudi?
Dues vegades a la setmana
Quins tipus de blocs van ser observats durant l'estudi?
'Line coverage', 'diagonal coverage', i 'open block'
Quin és un dels principals avantatges de l'enfocament CLA segons l'estudi?
Simplificar la tasca mantenint components rellevants de presa de decisions.
Study Notes
- Rob Gray, from ASU i Perception Action Podcast, reviewing a study on volleyball attack practice comparing ecological approach (CLA) to traditional methods.
- Study titled "How functional movement variability facilitates successful skill adaptation during the volleyball attack" by Duarte rugio, Keith David, and others.
- Focuses on manipulating task constraints in volleyball attack practice to facilitate skill emergence.
- CLA approach emphasizes exploration and performance solutions instead of automaticity.
- Study aims to compare traditional decomposed block practice and CLA approach in terms of performance outcomes.
- Uses male volleyball players, 12 participants, randomly assigned to either traditional or CLA group.
- Practiced for six weeks, twice a week.
- Observed three types of blocks: line coverage, diagonal coverage, open block.
- Traditional group practiced block drills in isolation, while CLA group interleaved them randomly.
- CLA group showed better performance with more successful attacks after training.
- Explored kinematic variables such as lateral and longitudinal deviation, center of mass.
- Findings suggest task manipulation in CLA group provided representative training context, supporting athletes' exploratory actions.
- Limit of possibilities in CLA approach simplifies the task while maintaining relevant information and decision making component.
- Inducing constrained variability in practice designs allows effective goal achievement, aligned with previous research.
- Practice attacks with an unknown yet limited number of blocks leads to better performance outcomes.
- CLA approach allows athletes to explore the system, promoting effective goal achievement.
Review of a study comparing ecological approach (CLA) to traditional methods in volleyball attack practice, focusing on functional movement variability for skill adaptation. The study examines task constraints manipulation and performance outcomes between the two approaches, with CLA group showing better performance after training.
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