Sit-up
The Sit-up primarily works the Rectus Abdominis, with secondary activation of the External Obliques, Iliopsoas, Rectus Femoris, Sartorius, Tensor Fasciae Latae and stabilizer support from the Tibialis Anterior. It is a bodyweight compound exercise at intermediate difficulty.
A bodyweight compound pull exercise targeting the Rectus Abdominis.
| Equipment | Bodyweight |
|---|---|
| Difficulty | Intermediate |
| Type | Compound |
| Movement | Flexion |
| Force | Pull |
| Laterality | Bilateral |
| Primary | Rectus Abdominis |
| Secondary | External Obliques, Iliopsoas, Rectus Femoris, Sartorius, Tensor Fasciae Latae |
Muscles Worked
Front
Back
Primary
Secondary
Stabilizer
Primary Muscles
- Primary Muscle Rectus Abdominis (core)
Secondary Muscles
- Secondary Muscle External Obliques (core)
- Secondary Muscle Iliopsoas (hip_flexors)
- Secondary Muscle Rectus Femoris (quadriceps)
- Secondary Muscle Sartorius (hip_flexors)
- Secondary Muscle Tensor Fasciae Latae (hip_flexors)
Stabilizer Muscles
- Stabilizer Muscle Tibialis Anterior (calves)
Instructions
- Preparation: Hook feet under foot brace or secure low overhang. Lie supine on floor or bench with hips bent. Place hands behind neck or on side of neck. Execution: Raise torso from bench by bending waist and hips. Return until back of shoulders contact incline board. Repeat. Comments: Feet can be held down by partnerinstead of foot bar. Certain individuals may need to keep their neck in neutral position with space between their chin and sternum. If upper back does not come completely down at end of movement, abdominal muscles may only beisometricallyinvolved in exercise. Pectineus, Adductor Longus, and Brevis do not assist in hip flexion since hips are already initially bent.
Alternative Exercises
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