An individual's measured range of motion upon abduction of the right shoulder is 90 degrees and upon adduction is 120 degrees.Which of the following statements about range of motion is true?
A) The range of motion at the shoulder joint is above average for adduction and above average for adduction.
B) The range of motion at the shoulder joint is above average for each movement.
C) The range of motion at the shoulder joint is below average for both abduction and adduction.
D) The range of motion at the shoulder joint is below average for adduction and normal for adduction.

Question

Quizplus · Accepted Answer

The normal range of motion for shoulder abduction is approximately 150-180 degrees, and for adduction, it is much less, typically around 30-50 degrees since adduction brings the arm back to the body from an abducted position. Therefore, a range of motion of 90 degrees for abduction and 120 degrees for adduction is below average for abduction and incorrectly stated for adduction, as adduction cannot have a higher degree than the starting neutral position.

An Individual's Measured Range of Motion Upon Abduction of the Right