3/4 Sit-Up

A controlled sit-up performed through 3/4 of the full range of motion to reduce hip flexor involvement.
Instructions
- Lie down on the floor with your knees bent and feet secured or flat on the ground.
- Place your hands behind or to the side of your head, being careful not to pull on your neck.
- Engage your core and flex your hips and spine to raise your torso toward your knees.
- Continue rising until your torso is perpendicular to the ground (at the top position).
- Lower yourself back down slowly, stopping when you reach approximately 3/4 of the way down (not fully flat).
- Repeat for the prescribed number of repetitions.
Tips
- Keep your lower back against the floor at the bottom position to minimize hip flexor activation.
- Avoid pulling on your neck; keep your hands light or crossed over your chest.
- The 3/4 range of motion emphasizes abdominal engagement over hip flexor work.
- Exhale as you lift and inhale as you lower for proper breathing rhythm.
- Move slowly and under control rather than using momentum to swing up.
Recommended starting values
Sensible novice starting points for each goal, for a lifter aged 25–40. Scale down for smaller frames or older lifters. Treat the first set of any session as a discovery set.
| Goal | Sets | Reps |
|---|---|---|
| Gain strength | 3 | 15 reps |
| Build muscle | 3 | 18 reps |
| Build endurance | 3 | 25 reps |
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