Which term describes repeated or continuous contact with hard sharp objects causing pressure over one area of the body?

• A. Contact Stresses
• B. Ganglion
• C. Psychological Risk Factors
• D. Work Related Musculoskeletal Disorders

Answer: (A)

Repeated or continuous contact with a hard sharp edge concentrates pressure on a small area of tissue. This localized pressure reduces blood flow and can injure tissues, leading to symptoms like pain, numbness, or tingling over time. In safety terms, this specific mechanism is described as contact stresses. It explains why even moderate forces can cause problems if contact is sustained or repetitive, especially with surfaces or tool edges that press directly into the skin or soft tissue. Mitigation focuses on smoothing or padding edges, using protective gloves, changing tools or grips, and reducing exposure time or peak pressure.

Other terms describe broader concepts: a ganglion is a cyst and not about pressure injuries; psychological risk factors relate to mental and behavioral influences on safety; work-related musculoskeletal disorders cover a wide range of overuse injuries, not the focused pressure on a single body area that contact stresses describe.