In Bernstein's model, what characterizes Stage 3 (exploiting the environment)?

In Bernstein's model, what characterizes Stage 3 (exploiting the environment)?

• A. Exploiting the environment as expert
• B. Freezing the limbs
• C. Maintaining fixed degrees of freedom
• D. Relying on external cues

Answer: (A)

Stage 3 is about using the environment to guide and stabilize movement, so skilled movers let task constraints and environmental properties shape their actions rather than clamping joints or keeping movements rigid. An expert performer leverages gravity, momentum, surface characteristics, and other constraints to produce coordinated, adaptable actions, adjusting smoothly to perturbations. Freezing the limbs or keeping fixed degrees of freedom describes earlier stages, and simply relying on external cues doesn’t capture the active use of environmental constraints that defines this stage.

Stage 3 is about using the environment to guide and stabilize movement, so skilled movers let task constraints and environmental properties shape their actions rather than clamping joints or keeping movements rigid. An expert performer leverages gravity, momentum, surface characteristics, and other constraints to produce coordinated, adaptable actions, adjusting smoothly to perturbations. Freezing the limbs or keeping fixed degrees of freedom describes earlier stages, and simply relying on external cues doesn’t capture the active use of environmental constraints that defines this stage.