Final answer:
Fixed/non-removable armrests are armrests on a chair that cannot be adjusted. In a study by Friedman & Rosenman (1974), it was noticed that cardiology patients wore down the front of these armrests and chair cushions peculiarly, perhaps due to stress or anxiety.
Step-by-step explanation:
Fixed or non-removable armrests refer to armrests attached to a chair that cannot be detached or adjusted. There is an interesting observation related to these armrests in the case of cardiology patients. According to Friedman & Rosenman (1974), a unique wear pattern was noticed on chairs with fixed armrests in a cardiology office. The front edges of the cushions and the front tips of the armrests had significant wear. This could suggest cardiology patients experience increased anxiety or stress, causing them to tap or squeeze the front of the armrests and sit on the edge of their seats more frequently than patients in other medical fields.