Purpose: To maintain or slightly increase strength of
quadriceps muscles during acute knee joint
inflammation when the joint is otherwise held
at rest and to avoid increasing blood pressure
when this is a consideration
Position: Sit with the back supported or in a supine
position; bend one knee and straighten the
other.
Movement
technique: Tighten the quadriceps of the straight leg.
Hold 3 to 6 seconds.
2 versions
1. build to 10,20,30 seconds holds
2. quick activation