Giới Thiệu · Abdominal Exercises
Vertical Lying Leg Thrust:1. Raise your legs until your feet are above your pelvis; focus on contracting the abdominal. 2. Thrust your heels to the ceiling, breathe out, keep contracting the abdominal, raising the pelvis out of the cradle of your fists. 3. Lower out of the thrust back to your fists, leaving your feet above your pelvis. 4. Lower your legs back to the initial position.
This version is the first release on CNET Download.com.