# Abs Training
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## Physiology
- Lumbar Flexion (Rectus Abdominis)
## Weighted Crunch
- Grab rope with pinkies up against the handle, pull it behind head
- Squeeze glutes for PPT
- Initiate movement by thinking about crunching the rope both down and in
- Do not jerk your head up and down
- Allow your lower back to straighten up on the negative
- Moderate to light weight zone, 12-20 reps
- Do not pull rope with your arms: loose grip, think of arms as connectors
- Do not flex only upper back
## Hanging Leg Raise
- 1.5x shoulder-width grip
- Roll hips forward and up
- Crunch your lower abs in your upper abs together
- Hips should stay stable
- 6-15 reps
- Do not only bend the knees
- Do not use excessive momentum
## Bicycle Crunch
- Spinal Flexion (Rectus Abdominis) and Spinal Rotation (Obliques)
- Hands behind head
- Right elbow to left knee by twisting torso and crunching your abs
- 15-20 reps
- Do not just move your arms: crunch your abs