Movement Practice WOD
exercise wod
AMRAP 12
8 controlled reps
10 bodyweight reps
200m easy run or 60 sec cardio
Gymnastics
GHD Sit-Up — CrossFit Core Technique Guide
BB
By Borja Bes — CrossFit Athlete & Hyrox Finisher
The GHD sit-up is one of the most aggressive trunk-flexion movements used in CrossFit. Performed on a glute-ham developer, it takes the athlete into significant spinal extension before a powerful sit-up back to neutral or above. That long range of motion creates a very potent training effect, but it also means volume must be introduced gradually. In CrossFit, GHD sit-ups are common in competitor programming, gymnastics strength cycles, and skill-development phases for athletes who already tolerate standard AbMat sit-ups comfortably.
Quick answer
GHD Sit-Up is best used when the workout goal matches its main demand: gymnastics capacity, clean mechanics, and scalable intensity.
Muscles Worked
Rectus abdominisHip flexorsObliques
Equipment
GHD machine
Best For, Avoid If, and Scaling
| Best for | Gymnastics WODs, skill practice, and athletes who can keep ghd sit-up mechanics consistent under fatigue. |
|---|---|
| Avoid if | Pain changes your movement pattern, fatigue makes reps sloppy, or the workout asks for a standard you cannot repeat safely. |
| Scaling | AbMat sit-ups, anchored sit-ups, or reduced-range GHD reps. |
How to Do the GHD Sit-Up
1
Set the footplate so the hips sit slightly in front of the pad apex.
2
Start tall with ribs down and feet anchored firmly.
3
Lower under control until the torso extends behind the hips.
4
Initiate the ascent by bracing the trunk and driving the arms forward.
5
Return to upright with control — do not crash into the top position.
Common Mistakes
✕
Using high volume too early — soreness and cramping are common when athletes progress too fast.
✕
Setting the machine too long, which removes control at the bottom.
✕
Falling into lumbar extension rather than controlling the range.
Coaching Tips
✓
Treat GHD sit-ups like a progression, not a default ab exercise.
✓
Start with low reps and full recovery before adding density in WODs.
Scaling Options
Easier / Beginner
AbMat sit-ups, anchored sit-ups, or reduced-range GHD reps.
Harder / Advanced
Tempo GHD sit-ups, weighted sit-ups, or strict leg-extended reps.
Related WODs
Use GHD Sit-Up in a Real Workout
Create a similar WOD
Technique + Conditioning
scaled workout
4 rounds for quality
10 technique reps
30 sec core hold
12 low-skill conditioning reps
Frequently Asked Questions
Why are GHD sit-ups considered risky for beginners?
Because they use a much longer range of motion than floor sit-ups and create high eccentric stress on the abs and hip flexors. Beginners should build capacity with standard sit-ups first, then introduce GHD volume slowly.
Build It Into a Workout
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