What does the name rectus abdominis muscle mean?
Where does the rectus abdominis muscle attach?
It’s important to recognize that the origin and insertion of the rectus abdominis can change depending on the movement.
Because of the long area it covers and the strength necessary, it’s compartmentalized into little packets. This is what we refer to as the six pack. Technically there are four compartments on each side.
Generally, it’s considered to originate on the pubic symphysis.
It inserts onto the costal cartilages 5, 6, & 7 and the xiphoid process.
What actions does the rectus abdominis muscle do?
The rectus abdominis acts to flex the trunk and compress the abdominal contents.
In the case of these abdominal muscles, stabilization is a key function.
Poses where the rectus abdominis muscle contracts:
Poses where the rectus abdominis muscle is lengthened:
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David summarizes research which suggests that the leg muscles which stabilize the ankle are important in maintaining standing balance poses.