How to do the 3/4 Sit-Up

Steps

1. Lie down on the floor and secure your feet. Your legs should be bent at the knees.
2. Place your hands behind or to the side of your head. You will begin with your back on the ground. This will be your starting position.
3. Flex your hips and spine to raise your torso toward your knees.
4. At the top of the contraction your torso should be perpendicular to the ground. Reverse the motion, going only ¾ of the way down.
5. Repeat for the recommended amount of repetitions.

Tracking it in OneRep

Add the 3/4 sit-up to a routine and your previous weight and reps sit beside every set, so the decision to add load is made by what is already on the screen rather than by memory. Exercise history and volume trends are one tap away, and logging works offline for the gyms where signal does not reach.

Because OneRep tracks food on the same timeline, a stall on this lift can be read against what you were actually eating that month — which is the difference between a programming problem and an eating one. More on that in tracking progressive overload without a spreadsheet.

Where the instructions come from

The steps above come from free-exercise-db, a public-domain exercise dataset. They are general guidance, not coaching for your body: if a movement hurts, stop and get someone qualified to look at it.