Postural Control Exam 3 Practice

The main idea here is that limits of stability are the boundaries of how far the center of pressure can move while you stay balanced within your current base of support. When you sway, your CoP shifts inside the base of support (your feet). As long as it stays within those limits, your muscles make small adjustments to keep you upright without needing to move your feet. If the CoP crosses the edge of that zone, balance is at risk and you’d typically need to change your base of support, such as by taking a step. So the best choice is the one that describes boundaries within which the CoP can move without losing balance or changing BoS. The other options don’t fit: maximum CoM velocity is about speed, not a boundary; length of limbs isn’t about sway limits; surface temperature is unrelated to postural control.