The peroneus longus muscle (or fibularis longus) is a major mover and stabilizer of your foot and ankle. The muscle runs down the lateral side of your lower leg and attaches to your foot.

New research from ECR 2025 shows promise in using dynamic ultrasound to diagnose peroneal tendon instability. Read more!

However, the application of ankle bracing to a healthy ankle over a long period has been scrutinised because of possible neuromuscular adaptations resulting in diminished dynamic support offered by ...