In the context of muscle bulk, what does pseudohypertrophy signify?

Pseudohypertrophy refers to the condition where muscle bulk appears increased, but there is actually diminished strength in the affected muscles. This phenomenon is commonly seen in certain muscular diseases, particularly in conditions like Duchenne muscular dystrophy. In these scenarios, muscle fibers are replaced by fatty and connective tissue, leading to an appearance of muscle enlargement while the actual functional muscle strength is compromised.

The appearance of increased bulk can misleadingly suggest that the muscle is strong; however, the underlying pathology results in weakness. This is crucial in diagnosing and understanding the implications of various neuromuscular disorders, as it reveals the difference between appearance and functional capability.