Hamstrings Workout with Core Push Ups

Michael Gonzalez-Wallace shows the importance of strengthening the Hamstrings
http://superbodysuperbrainblog.wordpress.com/2012/03/13/hamstrings-workout-with-core-push-ups/

Hamstrings Workout!
Exercise of the Week! Hamstrings Workout!

Check out the last issue of  Body Smart, the best health magazine!
Welcome to my exercise of the week from Body Smart. This week I have a phenomenal exercise for your core!

This week a Core exercise that strengthens your hamstrings as well!
Hamstrings refers to several muscles in the back of your legs that are involved in many daily activities such as walking, running, sitting, driving or standing. Weak hamstring can cause weak knees, tight lower back and poor posture. This week we will help you to Strengthen the hamstrings and support better the quads, strengthen the knees leading to a better neuromuscular performance, better posture and reduce risk of injuries such as lower back pain.
Check my book Super Body, Super Brain
http://www.harpercollins.com/books/Super-Body-Brain-Michael-Gonzalez-Wallace/?isbn=9780061945274?AA=about_RecentBooks_36385

Description
Get down on a quadruped position (on your hands and knees) You can get a padded surface for your knee if needed. Tighten your core and contract your abs to stabilize your spine then raise right leg till is completely horizontal with your spine, then curl your right leg to your buttocks (bending completely the right leg like in the following video copy and paste

http://www.youtube.com/watch?v=PjtScUZXRdY&feature=player_embedded