Bicep tendonitis is usually caused by overloading and overusing the biceps tendon. The primary function of your biceps is elbow flexion and turning your palm up. Biceps tendonitis symptoms can include ...

Achilles tendon: This tendon stores and returns a large amount of energy during running, and it’s important for running economy and propulsion, Melvan says. It runs down the lower half of your calf to ...