The Perception & Action Podcast 95 – The Legacy of Nikolai Bernstein III: “Repetition without Repetition” & Beyond
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Feb 6, 2018 Explore how Bernstein’s concept of 'repetition without repetition' transformed motor learning by emphasizing goal-centric practice. Discover how skill acquisition is framed as problem-solving rather than rigid formulas. Learn why movements remain consistent amidst variability and how coordinative structures streamline motor control. Dive into the idea of motor abundance, showcasing its adaptive advantages, and understand the Uncontrolled Manifold Hypothesis that differentiates beneficial variability. Coaches gain insights on crafting design problems to enhance learning effectively.
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Skill As Problem Solving
- Bernstein reframed motor learning as learning a problem-solving process rather than memorizing one movement pattern.
- He argued performers repeat goals, not identical muscle actions, to handle variable conditions.
Repetition Trains Problem Solving
- Absolute repetition is impossible because internal and external conditions always vary.
- Repetition trains the process of solving for a goal under different conditions, not a fixed motor pattern.
Constraints Create Functional Units
- Coordinative structures group muscles and joints into functional units via constraint equations.
- These constraints reduce degrees of freedom and define which variability matters for the task.
