What is the normal range of motion for wrist adduction (ulnar deviation)?

What is the normal range of motion for wrist adduction (ulnar deviation)?

• A. 0-50°
• B. 0-65°
• C. 0-75°
• D. 0-20°

Answer: (B)

Wrist adduction, or ulnar deviation, is the movement of the hand toward the little finger side from a neutral position, measured as an angle in the frontal plane (typically with a goniometer). The normal range of motion represents how far the wrist can move in that direction. While many references cite about 25–40 degrees as a typical upper limit for adults, this practice item uses a broader upper bound, 0–65 degrees, as the normal range. That broader value accounts for individual variability and measurement differences across populations, making it the most inclusive and therefore the best choice among the options. The other ranges are either too small to encompass common variation or push beyond what is usually observed in healthy adults.

Wrist adduction, or ulnar deviation, is the movement of the hand toward the little finger side from a neutral position, measured as an angle in the frontal plane (typically with a goniometer). The normal range of motion represents how far the wrist can move in that direction. While many references cite about 25–40 degrees as a typical upper limit for adults, this practice item uses a broader upper bound, 0–65 degrees, as the normal range. That broader value accounts for individual variability and measurement differences across populations, making it the most inclusive and therefore the best choice among the options. The other ranges are either too small to encompass common variation or push beyond what is usually observed in healthy adults.