Answer :
Final answer:
The normal end feel of shoulder internal rotation is firm, where the resistance felt is due to tension in the shoulder capsule and surrounding ligaments, without pain or discomfort, indicating a normal physiological barrier.
Explanation:
The normal end feel of shoulder internal rotation is firm. An end feel refers to the quality of resistance that is felt at the end of a passive range of motion. When the shoulder is internally rotated, the sensation is typically firm because the movement is halted by the tension in the shoulder capsule and surrounding ligaments. Unlike a hard end feel which suggests bone contacting bone, or a soft end feel suggestive of muscle bulk impinging, a firm end feel has a certain give or elasticity before it stops, akin to stretching a leather belt. Therefore, the correct answer to the question is C) Firm.
It's important to understand the different types of end feels in clinical examination to assess joint health accurately. A firm end feel in shoulder internal rotation indicates a normal physiological barrier, where increased tension within the joint's tissues restricts further movement without pain or discomfort.
