Athletic Training Practice Exam

Which type of ligament is primarily associated with a grade 1 ankle sprain?

1. Posterior talofibular ligament

2. Anterior talofibular ligament

3. Spring ligament

4. Deltoid ligament

The correct answer is: Anterior talofibular ligament

A grade 1 ankle sprain is typically characterized by a mild stretching or tearing of the ligament fibers without significant instability. The anterior talofibular ligament (ATFL) is the ligament that is most commonly involved in this type of injury. The ATFL is located on the lateral side of the ankle and plays a crucial role in stabilizing the ankle joint, particularly during activities that involve inversion, which is a common mechanism of injury for ankle sprains. In cases of a grade 1 sprain, the ATFL is often partially injured, leading to localized pain and swelling but preserving the overall stability of the ankle. This stands in contrast to higher-grade sprains, where there is a more significant rupture or complete tear of the ligament, often affecting the integrity of the joint. The posterior talofibular ligament, spring ligament, and deltoid ligament, while important structures in ankle stability and ankle mechanics, are less commonly associated with the type of injury experienced in a grade 1 ankle sprain. The posterior talofibular ligament is typically involved in more severe sprains or during specific movement patterns. The spring ligament is primarily located in the medial part of the foot and supports the arch, and the deltoid ligament is