Exercise library · Core
Sit-Up.
Classic ab exercise for overall core activation.
BeginnerBodyweight
The numbers
Sets
2–3
Reps
12–20
Rest
30–45
Muscles
Primary
Rectus abdominis · Hip flexors
Secondary
Obliques
The play-by-play
How to do it.
- Step 01
Lie flat with knees bent
- Step 02
Cross arms on chest or hands behind head
- Step 03
Sit up until torso vertical
- Step 04
Lower slowly back down
- Step 05
Repeat
What separates good from great
Pro cues.
Control descent, don't flop down
Keep feet flat on ground
Don't pull with neck