Sit-Up
The classic sit-up for the rectus abdominis. It works mainly the abs and hip flexors, with help from the obliques.
Flawless ranks it by sets logged: Gold, the third of eight ranks, starts at 50.
How to do Sit-Up
- Lie on your back with knees bent to about 90 degrees, feet anchored under something heavy, hands on your chest.
- Curl up one vertebra at a time until your torso is upright, exhaling on the way up.
- Lower slowly back to the floor; the way down is where most of the work is.
- Don't yank with the neck or throw the arms; if you can't get up without swinging, do crunches instead.
These are the same steps you see in the exercise guide in the Flawless app.
Muscles worked
| Role | Muscle | Anatomical name |
|---|---|---|
| Primary | Abs | Rectus abdominis |
| Primary | Hip flexors | Iliopsoas |
| Secondary | Obliques | Obliquus abdominis |
Muscle data from StrengthLog.
Why do it
- Abs and hip flexors through a long range
- Trunk strength for getting up off the floor
- No equipment needed
How Flawless ranks Sit-Up
| Rank | Sets logged |
|---|---|
| Bronze | start |
| Silver | 10 |
| Gold | 50 |
| Platinum | 150 |
| Diamond | 300 |
| Obsidian | 600 |
| Painite | 1,000 |
| Antimatter | 3,000 |
Flawless ranks Sit-Up by sets logged: the number of sets you have logged over time. The ladder is the same for everyone, because it measures work done rather than strength relative to bodyweight. The rank updates after every workout.
Similar exercises
Questions
What muscles does Sit-Up work?
It works mainly the abs and hip flexors, with help from the obliques.
How do you do Sit-Up?
Lie on your back with knees bent to about 90 degrees, feet anchored under something heavy, hands on your chest. Curl up one vertebra at a time until your torso is upright, exhaling on the way up. Lower slowly back to the floor; the way down is where most of the work is. Don't yank with the neck or throw the arms; if you can't get up without swinging, do crunches instead.
How does Flawless rank Sit-Up?
By sets logged: the number of sets you have logged over time. Gold starts at 50 and Diamond at 300, the same for everyone.
Try it free
Free on Google Play and the App Store. The whole log is free; PRO is optional.