Final answer:
The scapular activation drill should be performed at 90°, which is safer and below the painful range of motion for the client who experiences shoulder pain at 140° of flexion.
Thus the corret opction is:b
Step-by-step explanation:
If the client experiences shoulder pain at 140° of shoulder flexion, it would be advisable to perform the scapular activation drill at an angle where no pain is felt and the joint is not compromised.
Option A) 90° would likely be the safest angle for the client to hold his arm during the exercise.
This is because performing the drill at or beyond the angle that causes pain (140°) could possibly exacerbate the injury.
Therefore, the lower angle allows for the activation of the scapula without reaching the painful range of motion.