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3/4 Sit-Up
A partial-range sit-up that stops three quarters of the way up to keep constant tension on the abdominals.
AbsBodyweightTrunk flexion
GoLightWeight media3-4-sit-up
시범 영상 준비 중
Primary
Rectus abdominis
Secondary
ObliquesHip flexors
Equipment
Bodyweight
Pattern
Trunk flexion
Setup
- 01Lie on your back on a mat with knees bent about 90 degrees.
- 02Plant both feet flat on the floor at hip width.
- 03Place hands lightly behind the head or crossed on the chest.
- 04Press the lower back gently into the mat before the first rep.
Execution
- 01Exhale and curl the trunk up, peeling the spine off the mat one segment at a time.
- 02Stop about three quarters of the way to vertical, before the abs unload onto the hip flexors.
- 03Hold the top position briefly with the abs fully contracted.
- 04Lower under control without letting the shoulder blades fully rest on the mat between reps.
Checkpoints
- -Abs stay under tension for the entire set.
- -Chin stays off the chest and the neck stays relaxed.
- -Feet stay planted without being anchored down.
- -The stopping point is consistent rep to rep.
Common mistakes
- -Sitting all the way up and resting at the top.
- -Yanking on the head with the hands.
- -Using momentum by throwing the arms forward.
- -Letting the lower back arch off the mat at the bottom.
Programming notes
- -Use 2 to 4 sets of 12 to 20 reps at a controlled tempo.
- -Slow the lowering phase to 3 seconds when reps get easy.
- -Progress to weighted or decline sit-up variations once 20 clean reps are routine.
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