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Instructions
- Secure your feet under the foot pads of the GHD machine.
- Position your hips slightly forward of the pad to allow for full range of motion.
- Lower your upper body back in a controlled manner until your torso is extended past parallel.
- Contract your abs and initiate the movement by flexing at the hips and spine.
- Sit up until your torso is upright or slightly beyond vertical.
- Repeat the movement for the desired number of repetitions.
Technical Tips
- Avoid hyperextending the lower back at the bottom of the movement.
- Engage your core throughout the entire range of motion to protect your spine.
- Use controlled tempo to maximize abdominal activation and reduce momentum.
Breathing Tips
- Inhale deeply as you lower your torso backward.
- Exhale forcefully during the sit-up phase as you contract your core.
- Maintain rhythmic breathing throughout the set.
Medical restrictions
- Lumbar disc injuries
- Lower back pain or instability
- Post-abdominal surgery recovery
- Hip flexor tendinopathy
Description
The GHD Sit-Up, performed on a Glute-Ham Developer machine, is a powerful abdominal exercise that targets the entire core through a full range of motion. Unlike traditional sit-ups, the GHD Sit-Up allows for a dynamic extension of the torso beyond parallel, increasing eccentric loading and enhancing core strength development. This exercise also recruits the hip flexors and spinal erectors, making it ideal for athletes seeking improved trunk stability and explosive power. Commonly used in CrossFit and functional fitness training, the GHD Sit-Up is considered an advanced core exercise due to its demand on balance, mobility, and strength. When executed with proper technique, it contributes significantly to improving posture, reducing injury risk, and enhancing performance in sport and daily movements.