In balance training, standing on an unstable surface increases the demand for what kind of postural corrections?

• A. Decreases
• B. Eliminates
• C. Increases
• D. Has no effect

Answer: (C)

When the surface is unstable, maintaining balance becomes more challenging because the feet don’t provide a fixed base. The body must continually adjust to keep the center of gravity over the base of support. This requires more frequent and larger postural corrections driven by the neuromuscular system—engaging ankle and hip strategies and, if needed, stepping to regain stability. So, the demand on postural corrections increases on an unstable surface. Choices suggesting decreases, elimination, or no effect don’t fit because instability inherently pushes the system to respond more, not less.