Exercise guide
Wide Leg Sit-Up
- Beginner
- Compound
- Rep-based
- Waist
The Wide Leg Sit-Up targets the rectus abdominis and obliques while reducing hip flexor dominance by opening the hips. This variation improves core strength and functional mobility through a greater range of motion than a standard sit-up.
Reviewed by the Crucible team · Updated June 2026
Muscles worked
Setup
- Lie flat on your back on an exercise mat.
- Spread your legs wide into a 'V' shape, keeping your legs straight and heels firmly planted.
- Place your hands lightly behind your head with elbows out, or cross your arms over your chest.
How to do it
- Exhale and engage your core to peel your spine off the floor, lifting your torso toward an upright position.
- Continue the movement until your chest is upright and your torso is perpendicular to the floor.
- Inhale as you slowly lower your torso back to the starting position, controlling the descent one vertebra at a time.
- Maintain a controlled tempo, avoiding the use of momentum or swinging the arms.
Form checklist
- Keep your heels glued to the floor throughout the entire repetition.
- Avoid pulling on your neck; keep your chin tucked slightly and ears in line with shoulders.
- Ensure your lower back makes contact with the floor before starting the next rep.
- Keep your chest open and avoid rounding your shoulders excessively at the top.
Pro tips
- Focus on 'peeling' your spine off the mat to maximize abdominal recruitment and minimize hip flexor takeover.
- At the top of the movement, reach your hands forward between your legs to increase the stretch in your adductors and further engage the obliques.
Make it harder
- Hold a weight plate or dumbbell against your chest or extended overhead to increase resistance.
- Slow down the eccentric (lowering) phase to a 4-second count to increase time under tension.
Frequently asked
- What muscles does the wide leg sit-up work?
- The wide leg sit-up primarily targets the abs and obliques, and also works the erector spinae as secondary muscles.
- What equipment do you need for the wide leg sit-up?
- The wide leg sit-up requires no equipment — just your body weight.
- Is the wide leg sit-up good for beginners?
- Yes. The wide leg sit-up is a beginner-friendly movement and a strong foundation to build on.