rtion of the rectus abdominus (6-pack muscle) requires sound nutrition and complimentary body awareness. The upper portion flexes the torso forward or downward, and this is something we do in most activities. On the other hand we seldom rotate our pelvis under or upward. Being able to do this, recruits the lower portion of the rectus abdominus and contributes to pelvic stability.
A seldom used exercise called a Hanging Leg Raise incorporates full use of the lower abdominals with assistance from the hip flexors.
This can be done comfortably with hanging straps or utilizing grip strength and hanging unsupported from a bar or ledge.

Hanging Leg Raise
• In the starting position you should not sink into your shoulders as if you are slipping. Keep your chest up by contracting your latissimus dorsi (Lats).
• To begin this exercise draw your belly button towards your spine and tuck your pelvis under (lower portion moves forward and up). Allow your knees to follow up to your chest.
• To increase the intensity, do not bend your knees.