What is hyperextension?

Hyperextension refers to the movement or position of a joint where it is extended beyond its normal anatomical range. This often means that the joint is stretched further than what is typically permissible, leading to angles that exceed the standard extension. For instance, in the case of the elbow or knee, hyperextension occurs when the joint is straightened beyond a straight line.

This type of movement can be seen in various exercises and activities, but it can also lead to injury if performed incorrectly or excessively. Understanding hyperextension is crucial for fitness professionals to ensure clients maintain proper form and avoid potential harm during workouts. The definition aligns perfectly with the correct answer, emphasizing the importance of recognizing the limits of joint movement to preserve joint health and prevent injury.

The other options represent different types of movements or positions that do not accurately define hyperextension. A decrease in joint angle actually describes flexion, while movement sideways refers to lateral movement, and flexion of the ankle joint pertains specifically to plantar flexion or dorsiflexion rather than hyperextension.