Fysiqal
Anatomy
Anatomy
Rectus Abdominis
Evidence-grounded — sourced from Fysiqal's fitness knowledge graph· 1 min read
abdominalsrectus-abdoministrunk-flexorantigravity
0% read · 1 min left
In one line
The "abs"; a long strap-like trunk flexor split into left/right halves by the linea alba.
Detail
The rectus abdominis is commonly known as the "abs." It is a long strap-like muscle divided into left and right halves by a vertical tendinous line called the linea alba. The muscle tapers, so it is 3 times wider at the top compared to the lower section at the pelvis. It is a primary trunk flexor and one of the atrophic-weakening muscle groups.
Key facts
- Commonly called the "abs."
- Long strap-like muscle split left/right by the linea alba.
- Tapers — 3 times wider at the top than at the lower pelvic section.
- Primary trunk flexor.
Connections
- abdominals — group it belongs to.
- flexion — trunk flexion.
- atrophic-weakening-muscles — listed as an atrophic-weakening muscle.
- crunch / rope-crunch — training exercises.
SourceReference manual
p.348p.764
Cited authorities in source: Ellison (1991).
Educational content only — not medical advice. Always consult a qualified professional for individualized guidance, especially around injury, pregnancy, or medical conditions.
Explore related topics
Atlas Connections
Abdominals (Midsection)Closely related
Four muscles — rectus abdominis, external oblique, internal oblique, transverse abdominis — that flex, rotate, and laterally flex the trunk and compress the abdomen.Atrophic Weakening Muscle Groups
Eight major muscle groups especially prone to age-related atrophic weakening that a sound strength program should target.Flexion
Bending a joint so the bones come closer together.Crunches
The basic spinal-flexion abdominal exercise placed in the "contracted" position of the Positions-of-Flexion abs chart; targets the rectus abdominus.Rope Crunches
Kneeling cable crunch with a rope attachment, flexing the spine to work the rectus abdominus with oblique assistance.