SLR Straight-Leg Raise

An SLR in Supine combines Dynamic Hip Flexion with an Isometric Contraction of The Quadriceps.

The greatest Resistance is Encountered During The First Few Degree of SLR

PRIMARY MUSCLE - The Rectus Femoris is the Primary Muscle in the quadriceps group that is Active During SLR  exercise.



How to perform SLR


Patient Position - Supine with affected leg's knee  extended

Opposite Hip And knee are flexed and foot placed flat on exercise Table - To stabilise The pelvis and Low back



Procedure - first Patient Set quadriceps muscle by SQE(static Quadriceps) then lift the leg about 45° of Hip Flexion While keeping The Knee in extension 

Then hold the position for a count of 10 and lower it.


For progression of SLR have the Patient Lift to only 30° And Then To only 15° of hip Flexion and hold the position.

At later stage to increase resistance place the cuff weight around the patient's ankle.




If The Patient cannot perform an SLR because of a Quadriceps lag or weakness go for Straight Leg Lowering

STRAIGHT LEG LOWERING

PATIENT POSITION -  Begin By Passively placing The leg in 90° of SLR position ( or as Far as The Flexibility Of The Hamstring Allows)

Procedure - Tell Patient To Gradually Lower The extremity While Keeping The Knee Fully Extended.


Precaution - Be prepare to control The descent of the Leg With Your hand Under The Heel as The torque Created By Gravity Increases.



If Knee begins To Flex As The Extremity Is Lowering, Have the patient stop at that Point then Raise The Extremity upward to 90 and Tell patient to repeat That motion and attempt to lower the extremity a little farther each Time while keeping the knee extended



When patient can keep the knee extended while lowering the leg through the full Rom (Range Of Motion)  SLRs can be initiated..