Ankle Sprain

1. Origin of Ankle Sprain
Ankle sprains often occur when landing is unstable, stepping on uneven ground, or when the foot excessively inverts or everts during turns, causing ligaments to be suddenly stretched or torn. They are especially common when running on uneven surfaces, downhill, in a fatigued state, or when ankle stability is insufficient. Most cases happen because stabilizing muscles react too slowly, and external force exceeds the joint’s tolerance angle.

2. Warning Signs: How to Judge Severity Common signs include:

• Immediate pain at the moment of sprain, sometimes with a “pop” sensation

• Rapid swelling and tenderness on the inner or outer ankle

• Hesitation to fully bear weight, or feeling of joint instability

• Mild cases may still allow walking but with pain on rotation; severe cases make weight‑bearing difficult If swelling is rapid, pain is intense, or weight‑bearing is impossible, the injury is usually serious.

3. Prevention Before Exercise Key points: Stability, Reaction, Protection.

• Stability training: Strengthen ankle and calf muscles (single‑leg stance, balance pad, calf raises) to improve joint control.

• Dynamic warm‑up: Do ankle circles and multidirectional movements before running to “wake up” the joint and improve reaction.

• Environment & equipment: Avoid uneven or broken surfaces; shoes should provide good support and stability; if previously sprained, consider taping or ankle braces.

Summary: Ankle sprains are usually not bad luck—they happen when stability hasn’t caught up with training demands. Take care in advance to avoid many accidents.