In Primary Subacromial Impingement Syndrome, which age group is primarily affected in Stage 2?

• A. 0-10 years
• B. 11-24 years
• C. 25-40 years
• D. 41 years and older

Answer: (C)

In Stage 2 of Primary Subacromial Impingement Syndrome, the most affected age group is typically between 25 and 40 years. This demographic is often involved in activities that require repetitive overhead motions, which can lead to the development of impingement pathology.

In this stage, the condition primarily features progressive changes in the rotator cuff, and individuals in this age group may begin to experience chronic shoulder pain, often exacerbated by specific activities or postures. The combination of dynamic shoulder use and the natural aging process, which can include degenerative changes in the shoulder joint and surrounding structures, makes this age group particularly susceptible to developing symptoms associated with impingement.

As individuals age beyond 40 years, they may start to present with more chronic conditions or have different clinical findings, such as cuff tears or other degenerative changes that would categorize their shoulder issues differently. Additionally, younger age groups (0-10 and 11-24 years) generally experience fewer shoulder impingement problems as they are less engaged in the repetitive overhead activities that often lead to such conditions. Thus, they are less likely to be categorized under Stage 2 of impingement syndrome. This developmental understanding highlights why the 25-40 age range is