The Elbow

Proving a limitation of movement is of the utmost importance.
The existence of a limitation points to another cause than a simple tendinitis.
A tendinitis namely never leads to a limitation of the passive movements.
Therefore, only stop the passive movement when you obtain an obvious endfeel.
Don't stop the movement when the patient indicates pain, but look for a clear objective stop.
This is often the case in a type II tennis elbow; the passive extension may be so painful that the patient apprehenses when the movement comes to an end.
A dry and quick extension movement may then show the normal hard endfeel and demonstrate that there is no limitation of the extension.
Compare several times with the contralateral side before you conclude that there is a limitation in movement.