Which type of sprain is less common?

An eversion sprain is considered less common compared to an inversion sprain. This type of sprain occurs when the foot turns outward, causing the ligaments on the inside of the ankle to stretch or tear. Eversion sprains are less frequently seen in athletics and everyday activities because the anatomical structure of the ankle and the way most people land or twist their feet predisposes them to inversion sprains instead.

Inversion sprains, on the other hand, occur when the foot twists inward, which is a more common occurrence during physical activities like running, jumping, or changing directions. The foot's natural alignment often results in this type of injury being more prevalent among athletes and active individuals.

The option suggesting that both types are equally common overlooks the biomechanical tendencies of ankle injuries, where the inversion mechanism poses a higher risk due to the way ligaments and bones are aligned. On the other hand, the reference to a frontal sprain does not align with standard terminology in injury classification, making it irrelevant to the context of common sprains.