Exercise guide
Fixed Feet Sit-Up Stand
- Intermediate
- Compound
- Rep-based
- Lower legs
- Upper legs
- Waist
The Fixed Feet Sit-Up Stand is a dynamic compound movement that bridges core strength and lower body power, transitioning from a supine position to a full standing squat. It develops functional coordination and explosive power across the entire anterior chain and core.
Reviewed by the Crucible team · Updated June 2026
Muscles worked
Setup
- Lie flat on your back on a mat with your feet securely anchored under a heavy object, a gym rack, or held by a partner.
- Bend your knees at approximately a 90-degree angle with your feet flat on the floor.
- Extend your arms straight out in front of you at shoulder height to help with counterbalance.
How to do it
- Exhale forcefully and perform a rapid sit-up, driving your torso toward your knees with momentum.
- As your chest nears your thighs, immediately shift your weight forward over your mid-foot and drive through your heels to stand up into a full squat completion.
- Inhale as you sit back down into a deep squat with control until your glutes touch the floor.
- Roll your spine back down to the starting position one vertebra at a time, maintaining core tension.
Form checklist
- Keep your core braced and spine neutral during the transition from the floor to the stand.
- Ensure your knees stay tracked over your toes and do not cave inward during the stand-up phase.
- Avoid rounding your lower back excessively as you reach the top of the sit-up.
- Maintain a controlled tempo on the way down to maximize eccentric muscle engagement.
Pro tips
- Lean your torso aggressively forward during the transition; getting your shoulders past your hips is the key to a successful stand.
- Focus on a 'snap' at the hips during the sit-up phase to generate the momentum needed to clear the floor.
- Squeeze your glutes hard at the top of the movement to ensure full hip extension.
Make it harder
- Hold a medicine ball or weight plate at chest height to increase the resistance and shift your center of gravity.
- Perform the movement without anchoring your feet to significantly increase the demand on your hip flexors and abdominal control.
Frequently asked
- What muscles does the fixed feet sit-up stand work?
- The fixed feet sit-up stand primarily targets the abs, glutes, hamstrings, obliques, and quadriceps, and also works the erector spinae as secondary muscles.
- What equipment do you need for the fixed feet sit-up stand?
- The fixed feet sit-up stand requires no equipment — just your body weight.
- Is the fixed feet sit-up stand good for beginners?
- The fixed feet sit-up stand is rated intermediate. Build a base with simpler variations first, then progress to it with light load and strict form.
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