3/4 Sit-up
Description
The 3/4 sit-up rises about three-quarters of the way to a full sit-up and stops — maintaining constant tension on the abs without reaching the top where the hip flexors take over. It keeps the abs under load through the entire range.
Muscle Group
Equipment Required
3/4 Sit-up Instructions
- Lie on your back with knees bent, feet flat (anchored or free).
- Hands behind your head or across your chest.
- Sit up until your torso is about three-quarters of the way to vertical.
- Stop before reaching full upright — this keeps tension on the abs.
- Lower under control back to the floor.
- The key is stopping before the hip flexors take over at the top.
- Maintain constant ab tension.
- Aim for 12 to 20 reps per set.
3/4 Sit-up Form & Visual
3/4 Sit-up Benefits
- Maintains constant ab tension throughout
- Avoids hip flexor dominance at the top
- Builds ab strength through optimal range
- No equipment needed
- Simple modification of standard sit-ups
- Better ab isolation than full sit-ups
3/4 Sit-up Muscles Worked
- Rectus abdominis
- Obliques (secondary)
- Hip flexors (reduced vs full sit-up)
