What causes repetitive stress injuries?

• A. Infrequent physical activity
• B. Repeated motions that damage muscles and nerves
• C. Incorrect posture during exercise
• D. Excessive hydration during workouts

Answer: (B)

Repetitive stress injuries occur as a result of repeated motions that put strain on muscles, tendons, ligaments, and nerves, leading to pain and impaired functioning. This can happen in various situations, such as typing on a keyboard, using tools, or engaging in sports. Over time, repetitive motions can cause irritation and inflammation to these tissues, which can result in chronic pain and injury if not addressed.

The other options describe factors that can affect physical health but do not specifically cause repetitive stress injuries. Infrequent physical activity might contribute to overall muscle weakness but does not directly relate to repetitive motions causing strain. Incorrect posture during exercise can lead to other injuries or discomfort; however, it is not the primary cause of repetitive stress injuries. Excessive hydration during workouts, while important for maintaining fluid balance, does not have a direct link to the development of repetitive stress injuries.