Which statement best describes the neutral zone?

Which statement best describes the neutral zone?

• A. It includes active and passive ranges of motion
• B. It lies beyond the elastic barrier
• C. It is defined by the end-play zone
• D. It is identical to passive range of motion

Answer: (A)

The neutral zone is the part of the joint’s range where passive structures are lax, so movement occurs with minimal resistance. This low-resistance region can be encountered whether the joint is moved actively by the patient or passively by a examiner, so it sits inside the physiological range of motion and before any noticeable resistance from ligaments or capsules starts to rise (the elastic barrier). As you push further beyond this zone, you reach the elastic barrier where resistance increases, and further still lies the end-play zone near the end of the ROM. That’s why the best description is that the neutral zone includes both active and passive ranges of motion—it’s the region of low tissue resistance accessible in either type of movement. The other statements don’t fit: it isn’t beyond the elastic barrier, it isn’t defined by the end-play zone, and it isn’t identical to passive ROM.

The neutral zone is the part of the joint’s range where passive structures are lax, so movement occurs with minimal resistance. This low-resistance region can be encountered whether the joint is moved actively by the patient or passively by a examiner, so it sits inside the physiological range of motion and before any noticeable resistance from ligaments or capsules starts to rise (the elastic barrier). As you push further beyond this zone, you reach the elastic barrier where resistance increases, and further still lies the end-play zone near the end of the ROM.

That’s why the best description is that the neutral zone includes both active and passive ranges of motion—it’s the region of low tissue resistance accessible in either type of movement. The other statements don’t fit: it isn’t beyond the elastic barrier, it isn’t defined by the end-play zone, and it isn’t identical to passive ROM.