Physical Therapy / Rehab

Open Kinetic Chain: exercises performed with the distal end of the limb terminating freely in space.

Isotonic: muscle contraction which causes a joint to move through some ROM. Resistance remains constant while muscle length continuously changes.

• Concentric: isotonic contraction with muscle shortening.
• Eccentric: isotonic contraction with muscle lengthening.

Isokinetic: muscle contraction at a constant rate of speed.

Isometric: muscle contraction that produces force without change in the associated joint angle

Knee

• peak sheer stress is higher in open chain exercise than closed chain

Rehab Protocols