On a young person, you would not see a restriction in the flexibility of these muscles. Repeated stress, as we work and play, can cause these tissues to tighten up.
The ArmLock stretches the three muscles that attach to the outside of the elbow that causes Tennis Elbow.
- Extensor Carpi Radius Brevis
- Extensor Digitorium Communis
- Superficial head of the Supinator