Core
The main area this variation is designed to train.
Exercise guide
3/4 Sit-Up
Learn how to do the 3/4 Sit-Up exercise, which muscles it works, the equipment you need, and common mistakes to avoid.
Bodyweight
Use this to decide whether the movement fits your current setup.
Beginner
A quick checkpoint for how simple or technical the movement usually feels.
Core
Secondary support can come from other nearby stabilizers depending on how you perform the movement.
Strength
Movement pattern: core. This is a compound exercise.
Learning and repeating well
Use this page to understand the setup first, then track the movement consistently in Logbook once it fits your program.
Instructions
How to do 3/4 Sit-Up
Keep the setup simple, use a controlled pace, and repeat the same movement pattern each rep.
- Lie down on the floor and secure your feet. Your legs should be bent at the knees.
- 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.
- Flex your hips and spine to raise your torso toward your knees.
- At the top of the contraction your torso should be perpendicular to the ground. Reverse the motion, going only ¾ of the way down.
- Repeat for the recommended amount of repetitions.
Benefits
- Builds strength and control through the core region.
- Trains multiple joints at once, which can make your sessions more efficient.
- Gives you a repeatable way to track progress inside Logbook over time.
Common mistakes
- Using more weight or speed than you can control cleanly.
- Cutting the range of motion short and rushing through the reps.
- Changing your body position between reps instead of keeping the movement repeatable.
Variations
Alternatives
Related workouts
Workout templates that use this exercise.
If you want to see this movement inside a more complete training session, start here.
30-Minute Fat Loss Workout
A shorter full-body session designed to keep you moving and make consistency easier on busy days.
View workoutBeginner Home Workout
A bodyweight-only starting plan you can run at home with very little setup.
View workoutBeginner Weight Loss Workout
A low-complexity circuit that keeps you moving while still building basic strength.
View workoutLow-Impact Workout
A gentle full-body workout that stays lower impact while still training the main muscle groups.
View workoutRelated exercises
More exercises in the same lane.
Use these when you want a similar movement pattern, a different setup, or more exercise options for the same target area.
Plank
Plank is a beginner strength that mainly trains your core using bodyweight.
View exerciseBarbell Side Bend
Barbell Side Bend is a beginner strength that mainly trains your core using barbell.
View exerciseCable Crunch
Cable Crunch is a beginner strength that mainly trains your core using cable.
View exerciseCable Russian Twists
Cable Russian Twists is a beginner strength that mainly trains your core using cable.
View exerciseFAQ
Common questions about 3/4 Sit-Up.
Use these answers as a practical starting point, then adjust based on your setup, comfort, and goals.
What muscles does 3/4 Sit-Up work?
3/4 Sit-Up mainly works the core. It can also involve supporting muscles around the same region depending on your setup and range of motion.
Is 3/4 Sit-Up beginner-friendly?
Yes. This exercise is listed as beginner-friendly, which usually means the setup and learning curve are more manageable.
What equipment do I need for 3/4 Sit-Up?
You will usually need Bodyweight for this variation.
How should I progress 3/4 Sit-Up?
Start by making the reps smoother and more repeatable. Once the whole set looks controlled, add a small amount of load or one extra rep at a time.
Track this exercise for free in Logbook.
Once the movement is in your plan, use Logbook to record sets, reps, load, and progress without guessing what happened last week.
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