Sit-Up
The sit-up is an abs (core) crunch done with bodyweight only. On weyt.ai it counts toward Balance as Abs (minimum 4 sets per 30 days) and toward Routine only, not Gains: it is not load-scored, so high rep counts never inflate your volume or e1RM.
At a glance
| Muscle group | Abs |
|---|---|
| Primary muscles | abs (core) |
| Secondary muscles | none listed |
| Equipment | Bodyweight |
| Logged as | Reps per set |
| Gains scoring | Not load-scored (Balance and Routine only) |
| Balance group | Abs · minimum 4 sets per 30 days |
| Strength standards | none (standards exist for barbell and dumbbell lifts with published norms) |
How weyt.ai scores it
- Balance: every logged set counts toward the Abs group, which needs at least 4 sets per 30 days for full credit.
- Gains: not load-scored. Core, isometric and conditioning work contributes nothing to volume, e1RM or PRs, even with added weight, so it can never inflate your Gains. It still counts fully for Balance and Routine.
- Routine: any session that includes it counts toward your weekly target, the 4-week consistency window and your streak.
Scoring is deterministic code, not AI: the same sets always give the same Weyt Score. Read the method on the about page.
Also called
full sit up, butterfly sit up
Log it under any of these names and weyt.ai resolves it to the same exercise, so your history and progression never split across spellings.
Related abs exercises
Everything else that counts as abs
Suitcase Carry · Turkish Get-Up · Plank · Side Plank · Weighted Plank · Dumbbell Sit-Up · Dumbbell Side Crunch · Cable Crunch · Machine Crunch · Lying Leg Raise · Hanging Leg Raise · Hanging Knee Raise · Toe Touch · Flutter Kick · Scissor Kick · Mountain Climber · Dead Bug · Hollow Body Hold · Ab Wheel Rollout · Russian Twist · Standing Cable Ab Rotation · Cable Wood Chop · Pallof Press · Bird Dog · L-Sit · Bear Crawl