Core - Jacknife
TITLE: Prone Jack Knife BODY REGION: Abdominals
If the exercise is too tough for your client you will see an increase in Lordosis . If this is the case, develop Core stability in your clients with an easier exercise. Normal individuals should achieve 110 degrees of hip Flexion before lumbar Flexion occurs. Observe for rectus abdominis dominance (you'll see an increase in thoracic kyphosis).