Which statement defines an open environment in motor practice?

Which statement defines an open environment in motor practice?

• A. Objects or people are in motion or the support surface is unstable
• B. Objects and surfaces do not move
• C. The patient remains stationary
• D. No external factors affect the task

Answer: (A)

In motor practice, open environments are settings where the surroundings can change and objects or people may move, or the support surface is unstable. This forces the mover to continuously adapt in real time, using perceptual information and flexible strategies to cope with unpredictability. An example is catching a moving ball or walking on uneven ground, where external factors alter the task demands as you go. In contrast, a closed environment has stable, predictable conditions—fixed objects and a flat, stationary surface—so the performer can plan and execute without needing to adjust for unexpected changes. Simply remaining stationary or having no external factors would describe a closed or highly controlled setting, not an open one.

In motor practice, open environments are settings where the surroundings can change and objects or people may move, or the support surface is unstable. This forces the mover to continuously adapt in real time, using perceptual information and flexible strategies to cope with unpredictability. An example is catching a moving ball or walking on uneven ground, where external factors alter the task demands as you go.

In contrast, a closed environment has stable, predictable conditions—fixed objects and a flat, stationary surface—so the performer can plan and execute without needing to adjust for unexpected changes. Simply remaining stationary or having no external factors would describe a closed or highly controlled setting, not an open one.