The value of the vertical jump is that it show's a player's ability to burst off the line of scrimmage with lower body strength. That's why the drill is important for linebackers and defensive linemen despite the fact that they, in theory, are not jumping around much trying to defend passes.
Wrist tendonitis, also called tenosynovitis, is a common condition characterized by irritation and inflammation of the tendons around the wrist joint. Many tendons surround the wrist joint. Wrist tendonitis usually affects one of the tendons, but it may also involve two or more.
Types of Wrist Tendinitis Photo Credit Jupiterimages/Photos.com/Getty Images. Tendinitis by definition is inflammation, and any activity that requires a repetitive motion especially in sports that can require great amounts of force generated by these movements put the patient at risk for inflammation. By not treating the inflammation the patient risks instability, and possibly even rupture.