How does pneumonia affect the muscular system?

Pneumonia primarily affects the respiratory system, but it can have secondary effects on the muscular system. The infection can lead to decreased oxygen levels in the blood, causing muscle fatigue and weakness due to insufficient oxygen supply for muscle function. Additionally, fever and systemic inflammation can result in muscle pain and discomfort, further impairing physical activity and strength. Overall, the body's response to pneumonia can indirectly impact muscle performance and recovery.