Which term describes an injury caused by repetitive, low-grade stress over time?

The correct term for an injury caused by repetitive, low-grade stress over time is microtrauma. This type of injury typically arises from ongoing, minor damage to bodily tissues rather than from a single traumatic event. Microtrauma can lead to various conditions that develop gradually, such as stress fractures, tendinitis, or bursitis, often seen in athletes who engage in repetitive motions without adequate rest or recovery.

The concept of microtrauma emphasizes the cumulative nature of the stress that leads to injury, highlighting how small, consistent strains can result in significant tissue damage over time. Understanding this principle is critical in athletic training, as it guides preventative strategies and rehabilitation efforts focused on correcting biomechanics, conditioning, and appropriate training loads to mitigate risks of these injuries.