Which of the following could be a sign of possible musculoskeletal disorders?

Pain and swelling in the joints are key indicators of possible musculoskeletal disorders. These disorders often result from repetitive motions, improper ergonomics, or prolonged strain on the body, particularly in the joints and muscles. The presence of pain suggests that there may be inflammation or damage to the tissues, which is a common symptom associated with conditions such as arthritis, tendonitis, or carpal tunnel syndrome. Recognizing these signs early is crucial for prevention and for seeking appropriate medical treatment to avoid further complications.

In contrast, muscle efficiency improvement, increased physical activity, and weight loss typically indicate positive health changes and are not associated signs of musculoskeletal disorders. Improvements in muscle efficiency suggest that the body is adapting to physical demands effectively, while increased activity can enhance overall health and muscle strength. Similarly, weight loss often contributes to reduced stress on the joints and can alleviate symptoms associated with certain musculoskeletal conditions, making these options less relevant in the context of identifying potential disorders.