3/4 Sit-Up

Muscles worked

Main muscles
- Diaphragm
What it is
This exercise strengthens your core by lifting your torso towards your knees. It specifically targets your abdominal muscles, engaging them throughout the entire range of motion. By not returning fully to the floor, you maintain constant tension, maximizing muscle engagement. This helps to improve muscular endurance in your midsection.
Technique tips
- Engage your core before initiating the lift.
- Exhale as you curl your torso upward.
- Keep your hands lightly behind your head; do not pull your neck.
- Control your descent, stopping before your shoulders touch the floor.
- Avoid using momentum; focus on a smooth, controlled movement.
How to track your progress
Log reps, and add the extra load if you wear a belt or a vest. Straddly counts your bodyweight in the estimated max, so added weight and extra reps both show up as progress, and new records are flagged during the session.