The Physiological Barrier limits which ROM?

The Physiological Barrier limits which ROM?

• A. Limits passive ROM
• B. A factor that restricts or limits motion
• C. The range between physiological and anatomic barrier
• D. Limits active ROM

Answer: (D)

The physiological barrier is the end point of motion that a person can achieve with voluntary muscle control. It is set by the soft tissues around the joint—muscles, tendons, joint capsule, and ligaments—and by neuromuscular factors. When you reach this barrier, further movement requires stretching tissues beyond their normal functional limit, which is why active ROM ends here. Beyond this point, movement is limited by the anatomic barrier (bone-on-bone contact or extreme tissue stretch) or by other protective limits. So the physiological barrier defines the limit of active ROM.

The physiological barrier is the end point of motion that a person can achieve with voluntary muscle control. It is set by the soft tissues around the joint—muscles, tendons, joint capsule, and ligaments—and by neuromuscular factors. When you reach this barrier, further movement requires stretching tissues beyond their normal functional limit, which is why active ROM ends here. Beyond this point, movement is limited by the anatomic barrier (bone-on-bone contact or extreme tissue stretch) or by other protective limits. So the physiological barrier defines the limit of active ROM.