Acute injury is usually associated with a sudden, traumatic event such as another player during a game or a fall from a bike. A traumatic impact can cause your bone to crack, muscles to tear, and ligaments to snap.
Chronic injury is caused by repeated overuse of muscle groups or joints. Poor technique and structural abnormalities can also contribute to the development of chronic injuries.
Overuse injuries are common among athletes who participate in sports that require repeated motions like running, jumping, throwing, or swinging.