Step 1: Lie on your side with your spine in a neutral posture.
Step 2: Locate the multifidus muscle. Reach for your back and with your top hand, place three to four fingers across the side of your spine at waistline. The multifidus muscle can be palpated or felt here.
Step 3: Isolate and contract the multifidus muscle. Breathe in and on breath out, contract the multifidus by imagining that you are drawing your thigh into the pelvis. There should be no actual movement of the hips, pelvis or spine. The contraction of the multifidus should feel like a slow, firm ‘swelling’ or ‘bulging’ underneath your fingers.