A score of 4/5 in manual muscle testing is characterized by which description?

A score of 4/5 in manual muscle testing indicates "good strength with moderate resistance." In this context, the grading scale used for muscle strength ranges from 0 to 5, with 0 indicating no muscle contraction and 5 representing normal strength. A score of 4 signifies that the muscle can move through the full range of motion against gravity and can withstand some resistance, but not maximal resistance. This means the muscle exhibits good strength, but there is still a slight weakness when compared to normal muscle strength.

To elaborate, a muscle that receives a 4/5 score can perform its task effectively, demonstrating control and power, but it may be limited when it comes to more demanding resistance or weight. This classification helps physical therapists and assistants understand patient capabilities and how much assistance or modification may be necessary for rehabilitation exercises.