Rotator Cuff Syndrome: Demographics, Risk Factors, and Prevention

Epidemiology

• Age: Peak incidence 40–60 years; degenerative tears increase sharply after 60.
• Sex: Men slightly more affected (occupational/sports exposure); women catch up post-menopause.
• Prevalence: ~20% of adults have partial/full-thickness tears on imaging; many asymptomatic.

Occupational Risk Factors

• Repetitive overhead work: construction, painting, carpentry, plumbing, electrical, shelf stocking.
• Heavy lifting, forceful pulling, vibrating tools.

Sports Risk Factors

• Overhead throwing: baseball, softball, volleyball, tennis, swimming, water polo.
• Weightlifting (overhead press, snatch, clean & jerk).
• Contact sports: football, rugby (acute tears).

Non-Modifiable Risk Factors

• Age, male sex, family history, acromial morphology (hooked/type III).

Modifiable Risk Factors

• Smoking (impairs tendon healing)
• Obesity (mechanical load + systemic inflammation)
• Diabetes (glycation of collagen)
• Poor scapular mechanics, posterior capsule tightness

Prevention

• Rotator cuff and scapular stabilizer strengthening.
• Proper technique coaching for overhead athletes.
• Workplace ergonomics (adjustable heights, lift assists).
• Smoking cessation, glycemic control, weight management.